[BUGFIX] Prevent file information overlapping

This fixes the issue, that information about the file is overlapping the
file contents of text files when editing them.

Resolves: #80655
Releases: master
Change-Id: I732679c86d5533ec306ec6228f26946a16972dbb
Reviewed-on: https://review.typo3.org/52336


Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Tested-by: Frank Naegler <frank.naegler@typo3.org>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Joerg Boesche <typo3@joergboesche.de>
Tested-by: Joerg Boesche <typo3@joergboesche.de>
Reviewed-by: Benjamin Kott <benjamin.kott@outlook.com>
Tested-by: Benjamin Kott <benjamin.kott@outlook.com>