[FEATURE] Add ATagParams option to links of restricted pages

A new TypoScript option is introduced to allow to set
additional tag attributes to links of pages which are
access restricted but link to a login page.

This works globally for a page, but also for HMENUs.

Globally:
  config.typolinkLinkAccessRestrictedPages.ATagParams = class="restricted"

for HMENUs:

  page.10 = HMENU
  page.10.showAccessRestrictedPages = 13
  page.10.showAccessRestrictedPages.ATagParams = class="access-restricted"

Resolves: #19856
Releases: main
Change-Id: I21acdb1ef3290491291acb647c164bcfcee1837f
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78165


Tested-by: Jochen <rothjochen@gmail.com>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Jochen <rothjochen@gmail.com>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Oliver Bartsch <bo@cedev.de>