Fix container class around content elements
* [BUGFIX] Remove some array key warnings due to PHP8
* [BUGFIX] Remove breaking git merge lines
[FEATURE] Handling typo3/cms-composer-installers:v4
[TASK] Reinstall npm package copy-props
[BUGFIX] Correct paths to assets
[BUGFIX] Change colPos of team page sidebar
Upgrade to v12
* [BUGFIX] Add request to Standalone View (menu bar login)