*: project, web
This commit converts the Activity view to the current framework shared by
other views. Instead of extending Kanban view/elements, the Activity view
has been implemented by its own.
The project customization of the view has also been converted, as legacy
files have been removed.
Some tests have been adapted since some classnames might differ from the old
implementation, resulting to failing tests. But the overall testing cases
have been conserved.
closesodoo/odoo#107916
Related: odoo/enterprise#35177
Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>
Co-authored-by: Florent Dardenne <dafl@odoo.com>
