[BUGFIX] Allow <figure> tag outside of paragraph tags

<figure> is allowed in HTML5 outside of paragraphs,
thus it should also be configured like that out-of-the-box

See https://developer.mozilla.org/en-US/docs/Web/HTML/Element/figure

Since CKEditor5 is using <figure> around tables, and also
might add a <figcaption> both variants are now enabled by default.

Resolves: #99273
Releases: main, 11.5, 10.4
Change-Id: I9356cc13ccef764f475ba42cc47f43f7ecd624a1
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/76897


Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: core-ci <typo3@b13.com>