[BUGFIX] Do not allow users to edit doktypes without permissions

Disallow backend users to edit pages which doktypes are not allowed
via backend usergroup permissions.

Resolves: #79954
Releases: master, 8.7, 7.6
Change-Id: I527602e71c62bc8e33b0886a5758c7c8040b4720
Reviewed-on: https://review.typo3.org/51796


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Matthias Vogel <typo3@kanti.de>
Tested-by: Matthias Vogel <typo3@kanti.de>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Wolfgang Klinger <wolfgang@wazum.com>
Tested-by: Wolfgang Klinger <wolfgang@wazum.com>
Reviewed-by: Josef Glatz <josef.glatz@typo3.org>
Reviewed-by: Henning Liebe <h.liebe@neusta.de>
Tested-by: Henning Liebe <h.liebe@neusta.de>
Reviewed-by: Susanne Moog <susanne.moog@typo3.org>
Tested-by: Susanne Moog <susanne.moog@typo3.org>