Odoo Release Updates

[FIX] voip: correct rendering of call duration

[FIX] voip: avoid flickering when accepting a call

[IMP] base: remove SELF_READABLE_FIELDS and SELF_WRITEABLE_FIELDS

[IMP] voip: revamp the error screen and the error messages (technical)

[IMP] web_enterprise, *: use inputbox design

[IMP] voip, voip_ai: add call duration in the chatter for call activities.

[IMP] voip: remove activity_name

[IMP] voip: review the error UI structure

[IMP] voip: simplify VoIP error API

[IMP] voip: rename `isNonBlocking` error option

[FIX] voip: fix duration showing as floating point number.

[IMP] voip: prevent recording in demo mode

[IMP] voip, voip_ai: improve session recorder instantiation code

[REF] voip: don't set unused services

[REM] voip: voip service: remove fakeIncoming

[IMP] voip: remove useless Call.update method

[REF] voip: Registerer: remove state

[REF] voip: _onBeforeUnload in user agent service

[FIX] voip: review VoIP calls calendar integration

[FIX] voip: search term not taken into account

[REF] voip: remove callService

[FIX] voip: Keypad: font-size for placeholder

[FIX] voip: don't fetch /null on Ringtones.stopPlaying

[FIX] voip: scope mobile user agent mocking in keypad tests

[IMP] voip: add cleanup mechanism for calls that ended unexpectedly

[FIX] voip: prevent invalid props error in HOOT test runner

[FIX] voip: Delete call from softphone when unlinked

[IMP] voip: fixed font-size for number

[IMP] voip: store VOIP call duration and derive end date

[IMP] voip: add tests for get_contacts