Odoo Release Updates

[FIX] website: fix header alignment and position options

[IMP] mass_mailing: design option for margin bottom on paragraphs and headings

[IMP] website: update some header options availability

[FIX] html_editor: fix references and lint errors

[FIX] website: restore background colors for translator indicators

[IMP] account_peppol: add peppol_metadata

[FIX] sms_twilio: fix failure types support on notifications / traces

[FIX] account: warning on currency decimal change independent of entries

[FIX] spreadsheet: display value for id fields in pivots