[TASK] Extract "Remaining characters" into Lit element

The FormEngine feature that shows the amount of remaining characters
that fit in a field has been extracted from the
`@typo3/backend/form-engine` god module into a separate Lit element.

Also, the `badge-*` classes are migrated to `text-*` to have a lot less
"bulky" UI.

Resolves: #102273
Releases: main
Change-Id: I2f87d656ded8f31d9569762d3d68d2f46d861b69
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/81596


Tested-by: core-ci <typo3@b13.com>
Tested-by: Nikita Hovratov <nikita.h@live.de>
Tested-by: Benjamin Franzke <ben@bnf.dev>
Reviewed-by: Benjamin Franzke <ben@bnf.dev>
Reviewed-by: Nikita Hovratov <nikita.h@live.de>