This PR fixes the following issues, and adds the related missing unit tests.

**Before this PR:**
1.  Pasting an image or video URL as simple text was failing, and pasting it as a link was undoing the last modification before it.

2.  Pasting image/video URL + other text fragments: The powerbox commands are not compatible with pasting text containing:
    - one image/video URL and other text fragments
    - multiple URLs.
 
         Choosing to embed the image/video or to paste it as URL leads to loss of all text fragments and URLs but the last URL.

3. Pasting image URL inside an existing link: Even though the Editor's specs do not allow a URL to be transformed into a link when pasting it inside an existing link, pasting an image URL inside a link opens the powerbox with 3 commands, one of them allowing to transform the URL into a link.

~4. When pasting an image URL inside an "isolated" link (after having clicked on it and making it the only contenteditable in the document), the cursor disappeared, preventing the powerbox to open (it would open later when insering text somewhere outside the link).~

5. The Selection is not properly restored when UNDOing after pasting over a non-collapsed selection:
    - a valid URL (not image or video) 
    - text composed of a valid URL between text fragments 

6. When pasting media URL the powerbox would open with 2 command groups, containing one command each. Grouping is useless in this case.

7. Pasting media URL with the mouse (right click + paste) failed to open Powerbox

8. Pasting content inside an (invisible) empty link or when all its inner contents were selected lead to undesired effects, among which having nested links (see [task-3081254](https://www.odoo.com/web#id=3081254&menu_id=4720&cids=1&action=333&active_id=1695&model=project.task&view_type=form))

**After this PR:**
1. Image and video URLs can be pasted as a link ~or as text~.  
~But another issue arises from being able to paste a URL as text: if the user wishes to type further after the URL, hitting the SPACE key transforms the recently pasted URL behind the cursor. In order to prevent this, this PR proposes the following spec:~
~When pasting a URL as text at the end of a line, an extra space is added.~

~Otherwise the user would have no way to type more text in that line without transforming the URL into a link.
Pasting the URL somewhere other than right before a line break does not lead to the addition of an extra space, as this would mostly likely lead to an undesired inclusion of a space.~
         Pasting a URL as plain text is no longer possible, as this was considered a useless command.

2. The powerbox does not open when pasting multiple URLs or URL + other text fragments.
This does not change current spec, in which related tests only dealt with the scenario of pasting a single image/video URL. It proposes only that the current spec should not apply to the cases other than a single URL. In such cases, normal pasting with URL transformation takes place.
    
3.  The powerbox no longer opens when pasting a image URL inside a link, and the image is embedded directly. The logic for selecting the suitable powerbox commands when pasting URL was rewritten.

~4. The cursor position is restored after pasting an image URL inside an isolated link, and the powerbox opens.~
    
5. Selection is properly restored after paste + UNDO. 

6. Command groups were removed from powerbox upon paste of media URL. 

7. Pasting media URL with the mouse opens Powerbox as expected.

8. In order to prevent inadvertently pasting content inside a link rather than replacing it, this PR removes the link when pasting content inside an empty link or when all of its text content is selected, letting the pasted content replace it.

**Other minor fixes:**
Unnecessary regex matchings were removed.
Removed argument from call to `historyPauseSteps`, as this function takes no arguments.

See commit messages for details on the technicals.
 
task-3099012
task-3081254

Forward-Port-Of: odoo/odoo#117246
Forward-Port-Of: odoo/odoo#108755

Commit odoo/enterprise@4bbf70f was fixing a timezone issue. Datetimes coming from lists inserted in a spreadsheet were always displayed in UTC.

However, this commit also changed the formatting behavior. Before the fix: date/datetimes were dispalyed with the server format After: they are displayed with the local format (FR if the user lang is French)

This can lead to issues because spreadsheet only understands a handfull of date(time) format.
For example, it doesn't understand dd/mm/yyyy format but only the other way around (mm/dd/yyyy)

This commit restores the previous format (server format), while preserving the timezone conversion.

opw-3251586

Manual forward-port of odoo/enterprise#39438
X-original-commit: odoo/enterprise@c66f8622a5bc09d8ad25ce0850dfb536ebe1b201

Description of the issue/feature this PR addresses:

Current behavior before PR:

Desired behavior after PR is merged:




---
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Forward-Port-Of: odoo/odoo#118207

[FIX] mass_mailing,mail: fullwidth chatter & spacing

The Email Marketing app being in full width with a different chatter
behavior, its template was clashing with the inner navigation.

Moreover some inputs and labels had weird spacing and uneven responsive
behavior.

This commit removes the borders from the chatter `.o_ChatterTopbar_tool`
and next to the activity btn.

However, since the inner chatter template is inaccessible through
`<xpath>` and the borders were applied with bs classes, this required
the use of CSS variable to avoid an ugly overrides on the border
property with an `!important`. This use of CSS variable allows to
display borders by default except when the variable is defined inside
the `mass_mailing.scss` which removes the borders for this specific use
case. To allow better control and not alter the current behavior a new
class has been added: `o_ChatterTopbar_borderLeft`.

To even the spacing between the nav, the chatter's topbar and the
chatter messages, a negative margin is applied on first child of
`o_MessageList_separator` for mass_mailing. This allows the override
of the `pt-4`.

Moreover, in community if the chatter is in full width, the box-shadow
of the `Send message` btn was cut on the left side by the
`overflow: auto` on the .o_ChatterContainer, to avoid this behavior
the same CSS variable logic is used, using the
`--ChatterContainer-overflow` in the file  `chatter_containers.scss`
with a default value of `auto` and `visible` when the variable is
defined (in mass_mailing). The same logic is used in
`activity_box.xml, .scss` with the variable
`--ActivityBox_title-margin` to override the existing margin-top.

To fix the spacing issue this commits changes the padding top on
the Select mailing list `label` to be applied only in `sm` screens.
For small screens in mass_mailing, the default padding-left next to
the Send message is set to 0 with the variable
`--ChatterTopbar-padding-left`

Finally to avoid the `o_domain_selector` component's huge size on lg
screen, the class `w-lg-50` has been added.

task-3109579

[Before fix]
![image](https://user-images.githubusercontent.com/118886338/212903748-bf46739c-1adc-4ca4-b1ec-a87ea4ec1c78.png)

![image](https://user-images.githubusercontent.com/118886338/228530406-6e52028c-9cec-4044-b51a-4be937c1be17.png)


[After fix]
![image](https://user-images.githubusercontent.com/118886338/228530676-8ed71ace-d1e1-47b1-87c8-97b264f21330.png)


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Forward-Port-Of: odoo/odoo#117418
Forward-Port-Of: odoo/odoo#110145

[FIX] decimal position in unit test sample EDI XML files, using 2 decimal places instead of 6, not because it gave errors but because the technical specification states 6 decimal places solely for the fields unit_price and product_quantity and also because it is just impossible to have 6 decimal places in a country with USD as currency (In USD it is impossible to have a coin smaller than 0.01).
[FIX] A few translations
[FIX] Validation for requiring the payment method on sale invoice and purchase liquidation only
[FIX] Fix typos in a few tax templates
[FIX] Improves withhold report with better vertical alignment for the tax support and a few lines to make it more transparent which withhold taxes belong to which tax supports (we vertically center the tax support in the middle of its withhold taxes)
[FIX] Payment method in tests, to use a payment method that is in use nowadays (replaces code 17 electronic money with code 01 other methods, electronic money is no longer existent in Ecuador)
[FIX] Foreign supplier withhold test, by setting the proper tax regime (a foreign one) and using a foreign withhold tax. (It didn't break the tests before because the foreign regime is required in the view and not in python)
[ADD] Adds reimbursement taxes which were missing

Forward-Port-Of: odoo/enterprise#37505