Odoo Release Updates

[FIX] hr_holidays : fix access error on many2many fields to model 'hr.employee'

[FIX] sale_gelato: prevent duplicate Gelato order creation

[IMP] mass_mailing: fix scrolling during drag&drop

[REF] mail: cleanup leave function

[FIX] core: Fix multi-currency for sum_monetary aggregates

[IMP] hr_holidays: tighten accrual plans grid layout

[FIX] hr_holidays: Adjust alert styling for leave

[IMP] spreadsheet: change Odoo chart display name

[IMP] web: remove unused legacy mock service for color_scheme

[FIX] website: fix template sidebar (mobile menu position)

[FIX] website_slides: change default `o_cc` for `record_cover`

[FIX] mass_mailing: update html_builder asset inclusion

[FIX] html_editor, html_builder: table classes when pasting tables

[FIX] website_sale_(wishlist,comparison): fix installs

[FIX] website: fix `Max # of files` option in file upload fields

[REF] mail: move channel related code to discuss folder

[REM] hr_hourly_cost: merge module in hr

[FIX] project: hide 'Recurrent' field for archived tasks in project sharing view

[FIX] website*: Add "Popup" label to Newsletter Benefits

[FIX] mrp: prevent traceback in MO allocation report

[IMP] website: remove invalid props from BrokenLinks

[FIX] l10n_hu_edi: Missing 'SZJ' product code

[FIX] sale: fix PDF report for combo products

[FIX] html_editor: cleanup hotkeys shortcuts event listeners

[IMP] mass_mailing: improve onboarding in an empty email

[FIX] html_builder, mass_mailing: add defaultImageMimetype config

[IMP] website_slides: improve responsiveness

[FIX] l10n_us_account: make all 7* and 8* accounts expense_other

[FIX] orm: copy only readable m2m records

[FIX] website_sale: hidden carousel thumbs