[various] Clean controlpanel actions

PURPOSE

The 'action' dropdown on the controlpanel is starting to get messy. Their
labels are sometimes too long/repetitive. Some actions only make sense in
formview, some in listview, some in both. Some actions should be stat buttons.

Here are some of the 'guidelines' I've followed to clean those actions:
If the action already has a dedicated button in the formview, do not display
it in the formview action dropdown. Action labels always start with a verb.
Former actions that redirected to records are changed to stat buttons

SPECIFICATION

The following drive file defines all the changes to be done on actions:
https://docs.google.com/spreadsheets/d/1G0AtYs6VIXFz1vG32IoL457c_oy-OCXF9Tv19vLQdz8/edit?usp=sharing



The actions are grouped by object, which are grouped by product owner. The
ones in green are to be kept. The 'where' column specifies whether they should
be shown in formview, listview, or both. The ones in red are to be removed or
moved somewhere else (stat button, menu item). When an action is removed, check
whether the action it is calling is used somewhere else. If it is not the
case, remove it as well (clean the code).

Linked to task ID 1984526

closes odoo/odoo#33720

Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>