Odoo Release Updates

[REF] equity, marketing_automation: Replace useLayoutEffect

[REF] mail: simplify notification API with message record

[IMP] *: respect user timezone for business dates

[REF] *: Owl3 - replace useState with proxy

[REF] *: manual changes

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

[FIX] equity: Add support for multi-company

[FIX] equity: Quick create company

[IMP] test_lint{,_enterprise}, *: Index `Many2one` fields in `related` fields

[REF] equity: use birthday instead of ubo_birth_date

Adds .this prefix to template variables across codebase for OWL3 compatibility.

[REF] *: run rendering context migration script again

[REF] *: migrate type="base64" to "bytes"

[FIX] equity: allow changing equity currency on first transaction

[FIX] web, *: rename class as expected

[REF] *: Run script to replace t-model by t-custom-model

[REF] *: Run script to replace t-ref by t-custom-ref

[REF] *: Run script to replace t-esc by t-out

[FIX] equity: fix missing record error when send email in equity.transaction

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

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

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

[IMP] *: rename "Cancel" to "Discard"

[FIX] web_studio, appointment, web: fix property parsing and migrate badge widgets

[IMP] equity: add res_model to activity data upload UBO Form

[FIX] equity: typo in domain

[REF] base: make 'is_company' computed, remove company_type

[ADD] *: add apps icons

[IMP] core, *: split odoo.http module

[IMP] equity: Use odoomark instead of hacky css