### Move slot creation back to the top of the sidebar

Have it all in one place and allow the same behavior as the old "picking slots"
where an appointment is immediately created for users to set slots and share immediately.

As this removes the ability to search for a specific existing appointment, we also remove the
ability to select specific appointments to show in the list in favor of just filtering unused
appointment types (with slots ending over 2 weeks ago) to prevent clutter.

We also add an archive button on the quick edit form to enable removing unused appointments.

### Add appointment selection

Instead of clicking on an appointment type instantly enabling slot edition mode it will highlight the meetings that are linked to that appointment type in the calendar and set it as default for new bookings made while it is selected.

They can then enter slot edition by clicking on the "options" button and clicking picking slots, as was possible before.

### Combine creation and deletion mode

This mode was previously added to allow some actions when clicking slots such as creating
an event spanning the entire slot. In the end we prefer deleting slots being very accessible over that feature.

### Remove punctual options

These options are too advanced for a simple quick appointment creation. We still support displaying
them specially but users will have to go to the full form to actually set them up.

### View tweaks

Use pencil instead of cog, add a "add video link" button, etc...
Renaming of some actions to be more clear (save -> done, configure -> edit, ...)
Remove default name when creating a new appointment to force users to pick a good one.

### Minor fixes

Slot cloning actions are properly hidden when there are no slots to clone.
Users who don't have the access rights to create apt types don't see related options.

task-6544898

Forward-Port-Of: odoo/enterprise#131749