[TASK] Refactor PageTree and FileStorage into custom HTMLElements

Native HTMLElements are more versatile than a the current
NavigationComponent interface. All custom actions can be dispatched
via events, that means the NavigationComponent interface,
as recently introduced in #93672, is removed again.

Resolves: #93685
Releases: master
Change-Id: I578810ce655d1da3f34bcb456967f62756793b24
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/68233


Tested-by: Richard Haeser <richard@richardhaeser.com>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Benjamin Franzke <bfr@qbus.de>
Reviewed-by: Richard Haeser <richard@richardhaeser.com>
Reviewed-by: Benjamin Franzke <bfr@qbus.de>