Purpose of the commit is to do the generic improvment

So in this commit done the below changes:
1) Form view:
 - move the 'planned date' field below the 'parent task' one
 - switch the overlapping tasks and recurring tasks warning from place
 - overlapping tasks warning: indicate 'task' instead of 'tasks' when the nb=1
 - reorder the stat buttons

2) Kanban view:
 - display tags below the partner
 - the remaining hours tag should have the same design and visibility conditions than project tasks
 - update the quickcreate
   - change the name placeholder to: "e.g. Boiler replacement"
   - use the avatar widget for the user_id field
 - the start hour should be formatted as 10:00 PM instead of 22:00 PM
 - display the project below the name of the task

3) Map view:
 - added the worksheet template
 - move the date below the phone
 - Map popover added the project and assigned to field below the name

4) Calendar view:
 - display non working days (according to the company calendar) and global time off in grey
 - the city, zip and phone fields should only be visible if set
 - Calendar popover
   - add the worksheet template field below the name; only visible if set
   - remove the city and the zip fields and display the full address of the customer below his name instead
   - add the tags field below the phone one; only visible if set
 - Calendar popover
   - add the project and assigned to field below the name
   - use the avatar widget for the 'assigned to' field
 - open the day mode by default in the 'my tasks' menus
 - year mode: display the start hour in front of the name
 - display the avatar of the user in the right side panel

5) List view:
 - use the time widget for the 'hours spent' field
 - move the company field to the right of the user_id one
 - add the 'initially planned hours' field to the right of the 'end date' one
 - remove the deadline field
 - add the following fields on the right of the 'hours spent' one: remaining hours, remaining hours on SO, sub-tasks hours spent, total hours, progress
 - add the following fields to the right of the tags field: kanban state, stage
 - the sub-tasks hours spent and total hours fields should only be visible if the 'sub-tasks' feature is enabled in the settings of Project
 - add the priority field on the left of the name
   - display it in the same style as the products list view
 - the project and customer fields should be optional
 - the following fields should be displayed by default: project, assigned to, worksheet template, customer, start date, end date, next activity, tags, company
 - the following fields should be hidden by default: priority, initially planned hours, hours spent, remaining hours, remaining hours on SO, sub-tasks hours spent, total hours, progress, kanban state, stage
 - sort tasks by start date (from least to most recent)

6) Gantt view:
 - Gantt view popover
   - add the worksheet template field above the partner one; only visible if set
   - rename 'stop date' into 'end date'
   - add the project and assigned to fields at the top
 - indicate 'x other tasks for this employee at the same time' in red, below the tags field when applicable
 - open the day mode by default in the 'my tasks' menus

7) Activities view:
 - the list view and filters displayed when scheduling an activity should be
   the ones from field service instead of project

8) Graph/pivot views:
 - the list view opened when clicking on an element of the graph/pivot views should indicate 'Tasks' instead of 'Project Tasks'
 - group by project instead of project > stage in the 'to invoice' menu
 - Enable the sample data for the pivot/graph view of the worksheer template.

9) REPORTING:
 - remove the following measures: # days to deadline, # of tasks
 - remove the # in the following labels: working days to assign, working days to close
 - pivot view: group by project > assigned to

10) CONFIGURATION:
 - in settings
   - change the description of the 'time and material' feature to: "Keep track of the products used for your tasks, and invoice your time and material to your customers"
   - change the description of the 'extra quotations' feature to: "Create new quotations directly from your tasks"
 - project form view: add a 'worksheet template' label
 - project kanban view: use the same design as in the project app
 - project kanban view: display the name of the default worksheet template in muted, below the name
 - worksheets
   - change 'template name' into 'name'
   - display the 'create' button in form view
   - rename the action into 'Worksheet Templates'
   - remove the graph and pivot view from worksheet template menu

11) MISC:
 - add products: add a burger menu on hover with a button to edit the product
 - the 'worksheets' feature should be enabled by default when Studio is installed
 - my tasks > tasks menu: add a group by start date > day by default

TaskID: 2502339

Define `data-hotkey` on most used action buttons.

TaskID: 2588233