[TASK] Migrate @typo3/form/backend/form-editor/modals-component to TypeScript

Resolves: #101733
Related: #82577
Releases: main, 12.4
Change-Id: I4d9f92287d9a2b69fa4421de2377f7bf9806147c
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/80723


Reviewed-by: Benjamin Franzke <ben@bnf.dev>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Benjamin Franzke <ben@bnf.dev>