Breaking: #84877 - Localization of page on column basis removed

See Issue #84877

Description

The “Translate” buttons located in each column (colPos) in the page module have been replaced by one global action button per language.

Impact

The possibility to translate each column of a page from a different source language has been removed. Instead, the whole page gets translated with the locale action.

Affected Installations

Every installation relying on having different sources per localization is affected.

Migration

Manually migrate any content element by changing its parent by editing the element, in case mixed sources are used.