Odoo Release Updates

[IMP] *: adapt code to use new model ir.access

[IMP] *: apply script converting to ir.access

[IMP] *: add explicit group implications to make sense of ir.rules

[IMP] web, *: adapt code to updated Owl

[IMP] mail, various: add support for Cc recipients in the mail API

[REF] base, web, *: rename kanban class for cards

[FIX] website_*: allow Font Style changes on controller page headings

[IMP] mail: redesign the Discuss meeting view

[REF] base/website: Use `self.env.website` in the controllers

[REF] website: replace request.website with context-based website_id

[REF] base/website: introduce website model in base and put it on `env`

[IMP] base: add 'get_all' helper to CachedModel

[REF] *: Owl3 - replace useState with proxy

[REF] mail: simplify notification API with message record

[IMP] *: use user-local date for date-only flows

[IMP] mail, *: replace `-webkit-line-clamp` with `.o_line_clamp`

[REF] *: migrate t-slot to t-call-slot

[REF] web: add owl3 compatibility layer

[REF] web: remove autosave on specific widgets in form view

[IMP] mail, *: improve portal chatter copywriting

[FIX] website_slides: prevent merging contacts enrolled in common courses

[FIX] website_slide: update quiz answer tags without page reload

[REF] *: manual changes

[REF] *: run rendering context migration script on inline xml

[FIX] website_slides: fix populate_description_short

[REF] website_slides: transform embed slides viewer to an Interaction

[IMP] website, *: js tracking

[FIX] website_slides: use more robust assertion for empty chatter

[IMP] html_builder, website, *: change dropzone messages

[FIX] *: remove undeterministicTour key