[BUGFIX] Resolves wrong usage of col and colgroup

* Remove <col> calculate and use short syntax
* Add CSS to render the table fixed

Resolves: #78296
Releases: master, 7.6
Change-Id: Ibd698ac0ea19f005534d891debe1d8b17848d036
Reviewed-on: https://review.typo3.org/50228


Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>