This commit improves the handling of events on the editor's lists. The
fields that make up the list can trigger a preview and it is possible to
switch from one field to another using the keyboard. Note that the
social media we-list must render at each blur of one of its inputs, so
this we-list does not allow to switch from one input to another with the
keyboard.
As the we-list events changed, the social media block tests had to be
slightly modified to take these changes into account.
task-2601533
Part-of: odoo/odoo#81241
Guillaume (gdi)
9e9031a943