[TASK] Improve accessibility of user settings module

The following changes are applied:

- Set a title tag
- Add aria labels to the various input fields

Resolves: #89597
Releases: master
Change-Id: I0a48e9d885b35ea81e47a29989c69f9c8d4b99f3
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/62232


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Susanne Moog <look@susi.dev>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Susanne Moog <look@susi.dev>