[TASK] Streamline card rendering

We are dropping the `.card-table` styling and adjusting `table-fit`
to also work in cards the same way they work in panels.

Instead of using Utility-CSS to give cards a state different, we now
include card states like other components already have.

Card containers now only introduce space to bottom.

Cards now also have an increased border radius assigned,
to match the other components in the backend.

Resolves: #100636
Releases: main
Change-Id: I17532e58d46e52210f42c5b3b9e333ce4611e50e
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78683


Tested-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Jasmina Ließmann <minapokhalo+typo3@gmail.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Jasmina Ließmann <minapokhalo+typo3@gmail.com>
Tested-by: Benni Mack <benni@typo3.org>