[TASK] Make type=link fields TEXT by default

Similar to type=slug with #104063, type=link fields
are now set to TEXT by default. This especially saves
precious row size in tt_content due to header_link.

type=link fields can be nullable and can have default
values. Doing this with TEXT fields is possible since
issue #103578.

Resolves: #104068
Related: #104063
Related: #101553
Related: #103578
Releases: main
Change-Id: Ib1aa1f3df0e84afc9a99a25972ddc85fb3b462f6
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/84658


Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Garvin Hicking <gh@faktor-e.de>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Garvin Hicking <gh@faktor-e.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Andreas Kienast <a.fernandez@scripting-base.de>
Reviewed-by: Andreas Kienast <a.fernandez@scripting-base.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>