TYPO3: "Hide child pages" option for large page trees with many pages

Not visible for folders: https://forge.typo3.org/issues/108068

Search words:

• typo3 page tree expand large number of children
• node-mount-point, mountpoint-close
• temporäre datenbankfreigabe
• page tree stops here
• Verberge Unterseiten im Seitenbaum [php_tree_stop]
• Behavior > Miscellaneous > Hide child pages in page tree