This update modernizes internal website tour testing tools by replacing older jQuery-based code with native JavaScript. It helps keep Odoo's automated tests easier to maintain while removing unused testing actions, with no expected direct impact on day-to-day users.

In this commit, we replace jQuery usages by native javascript in RunningTourActionHelper.
Theses actions were removed from RunningTourActionHelper :
- clicknoleave (not useful)
- keydown (not used in codebase)
- drag_and_drop_jquery (no longer needed)

task~3600484

This update reorganizes internal tests for Odoo's messaging and live chat areas to prepare for a newer testing approach. It does not change customer-facing features, but it helps future development work move faster with smaller, easier-to-review changes.

This reduces the diff of follow-up PRs.

This update modernizes internal website tour testing tools by replacing older jQuery-based code with native JavaScript. It removes unused helper actions, reducing maintenance overhead without introducing expected changes for end users.

In this commit, we replace jQuery usages by native javascript in RunningTourActionHelper.
Theses actions were removed from RunningTourActionHelper :
- clicknoleave (not useful)
- keydown (not used in codebase)
- drag_and_drop_jquery (no longer needed)

task~3600484

The Mexican delivery guide support has been consolidated so version 3.0 is handled directly in the main stock localization modules. This removes now-unneeded separate modules from master, simplifying maintenance without introducing a new business feature.

Both `l10n_mx_edi_stock_30` and `l10n_mx_edi_stock_extended_30` were added in stable to support version 3.0 of the Mexican delivery guide (Carta Porte).

They are no longer needed in `master`, which is why they are being merged into their respective parent modules.