[TASK] Correct the semantic structure of headings in some card views

Several H1 headings are used in some card views. As a result, the
semantic structure for these views is not correct. The relevant H1 headings are changed to h2.

Resolves: #101545
Releases: main, 12.4
Change-Id: Ic53d92a52b1ae75adda18a63bc76633d7ffcfa44
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/80227


Tested-by: Jasmina Lie�mann <minapokhalo+typo3@gmail.com>
Reviewed-by: Jasmina Lie�mann <minapokhalo+typo3@gmail.com>
Tested-by: core-ci <typo3@b13.com>