[BUGFIX] Evaluate proper permissions on pasting content

The check if a user is allowed to paste content from the clipboard
now evaluates the content modify and content edit permissions instead
of the page edit permission. This is done in both PageLayoutView and
the fluid based page module.

Resolves: #90961
Releases: master, 9.5
Change-Id: I65a29a9a6cf4ae4e73af28d1319d0b730fd5f5bd
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/64105


Reviewed-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Josef Glatz <josefglatz@gmail.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Josef Glatz <josefglatz@gmail.com>
Tested-by: Benni Mack <benni@typo3.org>