[TASK] Use HTML5 input type number for backend pagination

Using the type number for the pagination page field improves the
usability.

Resolves: #78608
Releases: master, 7.6
Change-Id: I963bda892bb7a0ec72b2726f6086808dd421ac1c
Reviewed-on: https://review.typo3.org/50545


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Reviewed-by: Joerg Boesche <typo3@joergboesche.de>
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>