Odoo Release Updates

[IMP] im_livechat: use Promise.withResolvers instead of Deferred

[REF] mail, *: unify empty message logic

[FIX] l10n_in_ewaybill_stock: show only date in document_date for e-waybill

[IMP] website: use default template for carousels in tests

[IMP] website, html_builder: use img for carousel preview indicators

[IMP] point_of_sale: display cash rounding in sale details report

[FIX] hr_holidays: Fix domain of _get_leaves_from_vals

[FIX] account_peppol,l10n_dk_nemhandel: add missing key in demo utils

[FIX] survey: use recipient lang for invitations in mixed-lang batches

[IMP] html_editor: unify resize logic using resize configurations

[REF] html_editor: make areSimilarElements overridable by plugins

[REF] html_editor: move areSimilarElements into format plugin

[FIX] mail: correct position of 'is typing' IM status in Safari

[FIX] mail: enter should not send message when emoji picker is open

[FIX] l10n_ar: skip required tax group check on chart template reload

[FIX] project_timesheet_holidays: Exclude archived employees from time-off timesheets

[FIX] sale,(_timesheet): hide 'View Timesheets' button for users without access

[IMP] product, *: simplify product variant management

[IMP] l10n_be_hr_payroll: implement european leaves as double holiday

[IMP] bus: replace deprecated Deferred with Promise.withResolvers

[IMP] mail: improve composer mention suggestion list

[IMP] website_livechat: add `ai.session` to frontend store

[FIX] stock: set return_id on backorder return

[FIX] account: avoid cross-company tax access in line tax compute

[FIX] account: Remove payment QR code on mobile

[IMP] l10n_pl_edi: save ksef xmls as attachment

[FIX] l10n_in: fix tax grid of "18% IGST (IMP-Service)" tax

[FIX] html_editor: Powerbuttons overlap other menus if editor is narrow

[FIX] hr_holidays: correct leave balance report

[IMP] calendar: limit recurrent event creation to 15 years