Odoo Release Updates

[REF] helpdesk: split rotting field widgets

[FIX] helpdesk: use current datetime instead of today date to search ratings

[REF] mail: simplify notification API with message record

[FIX] helpdesk: correctly use tagged quote nodes

[IMP] *: respect user timezone for business dates

[REF] *: Owl3 - replace useState with proxy

[FIX] helpdesk: fix view crashing due to residual use of removed color field

[FIX] helpdesk: get default_external_email_server as bool

[REF] web, *: rename RemainingDaysField to RelativeDateField

[FIX] voip_helpdesk: count open tickets from children

[IMP] helpdesk: calculate close_hours based on open stages only

[REF] *: prefix template references with this. and rename t-esc/t-ref/t-model for Owl 3

[FIX] helpdesk: prevent error when creating a helpdesk team

[IMP] helpdesk, *: improve portal chatter copywriting

[FIX] helpdesk: add missing keyboard shortcut stage deletion wizard

[FIX] helpdesk: prevent selecting customer from different company

[FIX] various: cleanup duration mixin tests

[FIX] helpdesk: use ticket reference instead of ticket ID in closed template

[IMP] helpdesk, _*: remove the color field from stages

[FIX] helpdesk: show 7-day average rating as score out of 5

[IMP] helpdesk, _*: improve demo data for helpdesk

[IMP] helpdesk: replace criteria fields on SLA policies with a domain

[REF] various: remove useless 'tracking_disable' / 'mail_notrack' in tests

[FIX] helpdesk: hide `Days to rot` in helpdesk stage kanban view

[IMP] helpdesk: Hide reporting menus from non-admins

[FIX] helpdesk: fix selection domain

[FIX] helpdesk: correct domain

[IMP] account_base_import,l10n_{be_hr_payroll,ng_reports}: adapt tests for consistency of env.companies

[REF] helpdesk: store stage durations according to company working hours

[REF] *: unifies relative filters in arch