Odoo Release Updates

[IMP] mail: standardize inconsistent Dropdown design

[REF] *: remap useState import to owl2/utils

[REF] *: remap useRef import to owl2/utils

[REF] *: remap useChildSubEnv import to owl2/utils

[REF] *: remap useSubEnv import to owl2/utils

[REF] *: remap useEnv import to owl2/utils

[REF] *: remap useComponent import to owl2/utils

[PERF] mail: avoid sending inbox only-fields in chatter

[REF] *: manually fixing t-out errors

[IMP] mail: primary button for 'join channel' button

[FIX] mail: no overlap of call cards when video stream in chat window

[REF] *: Replace onWillRender/onRendered import path for owl3 migration

[REF] mail, hr_{holidays,homeworking}: refactored im_status overrides

[FIX] mail: no composer local storage save on empty

[IMP] mail: display priority in message inbox

[REF] *: Replace useEffect with useLayoutEffect for owl3 migration

[FIX] web_tour: avoid interacting with triggers behind modals

[IMP] mail: use small image previews in chatter

[FIX] mail: disable video plugin in composer

[IMP] mail: improve notification settings thread action

[FIX] mail: restore formatting of full composer content

[FIX] base: ensure an uniform environment between action variables

[FIX] mail: prevent horizontal scrollbar in messaging menu

[FIX] mail: show thread name in invite and notification dialogs

[IMP] mail: meeting channel revamp

[IMP] test_mail: improve msg/activity test access coverage

[REF] *: remove synchronous assertions in tours

[IMP] mail: redesign message highlight effect for better focus

[IMP] mail, im_livechat: replace MessageConfirmDialog with dedicated dialogs

[FIX] mail: fix insertion of mixed up many commands