(cherry picked from commit c92ad8ae)

* fix wrong since
* fix two mistakes
* add unit tests

Currently translated at 100.0% (283 of 283 strings)

Translation: XWiki Platform/XWiki Platform - CKEditor - UI
Translate-URL: https://l10n.xwiki.org/projects/xwiki-platform/xwiki-platform-ckeditor-ui/de/

* Always use secure() (thanks to Thomas)

  * Improve translations

  * Fix download URL for LO

* Add fr_FR, fr_BE, and de_DE to the locales supported by Solr.
* Add page objects for search results.
* Add an integration test that checks that search results in the added
  locales work.

  * Upgrade some dependencies

* Make sure that the 2 builds are executed on the same node, one after another (since the 2nd one depends on the 1st one)

  * Fix typo which leads to rendering error

Currently translated at 100.0% (236 of 236 strings)

Translation: XWiki Platform/XWiki.Notifications.Code.Translations
Translate-URL: https://l10n.xwiki.org/projects/xwiki-platform/xwiki-platform-notifications/xwiki-notifications-code-translations/pt/

XWIKI-22482: Links wrapping images that have been centered with the old image dialog are lost on save
* Fix the image widget initialization and downcast when the image was previously inserted with the old image dialog.

* Fixed two high severity recent bad code practices