Odoo Release Updates

[FIX] mass_mailing: restore CRUD on ir.views for group_system

[FIX] html_builder: fix gaps in nested option connectors

[FIX] l10n_dk_nemhandel: document support traceback

[FIX] website,*: restrict submit button options in form builder

[IMP] mail: redirect to discuss from public page

[FIX] survey: prevent hiding timer in live session

[REF] mail,im_livechat: move leaveChannel to channel

[FIX] l10n_id_efaktur_coretax: Fix tax group restriction in efaktur coretax

[FIX] account_edi_ubl_cii: allow negative discounts for Peppol BIS 3

[FIX] html_editor: scope LocalOverlayPlugin containers cleanup

[FIX] base, test_new_api: handle unlink for company-dependent selection values

[FIX] l10n_vn_edi_viettel: wrong exchange rate when issue foreign

[REF] im_livechat, mail: simplify chat window close

[FIX] web: add a menu to the clickbot's blacklist

[FIX] base: align flag icons in app icons

[IMP] im_livechat: remove old form content

[FIX] account: tooltip props validation error

[FIX] hr_expense: include all attachments in generated journal entries

[FIX] account: prevent error when paying an invoice

[IMP] website_blog: improve blog form UI and add teaser field

[IMP] sale_project: consistent top bar display for sales orders

[FIX] sale_timesheet : hide remaining hours on subscription tasks

[FIX] l10n_hu_edi: e-invoice currency rate date

[IMP] account: in the common test utils, avoid creating invoice_line_ids if (invoice) lines are already given as the args

[FIX] fleet, point_of_sale: Adjust VAT -> tax

[FIX] l10n_tw_edi_ecpay : missing neutralization

[FIX] iot_drivers: catch value exception

[IMP] hr_holidays: Improve leave handling on working schedule changes

[FIX] hr_expense: Fix wrong partner for bank

[IMP] html_builder: sort font names alphabetically for better usability