fix: Show pages titles using fallback languages in pagetree #7955
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Description
In django CMS 3.x the page tree only showed page titles in the current admin language. In django CMS 4 the language of the page tree can be selected using a drop down. If there is no page content object for the page in the selected language "Empty" is shown as a page title. Fallback languages are ignored:
To improve usability and allow a user to identify pages, this PR falls back to available languages and indicates the language in brackets:
Related resources
Checklist
develop-4