8 backports to do

main	14.3	13.4
Merged #92187 [TASK] Unify ViewHelper arguments naming Author Simon Praetorius Updated 01/15/26, 12:43 Affected Files 2 Patchsets 4 Reviews 6 Verifies 7		Review is missing.
Merged #93657 [BUGFIX] Introduce `PackageSetup` to unify extension setup Author Helmut Hummel Updated 04/16/26, 07:25 Affected Files 7 Patchsets 9 Reviews 4 Verifies 5		#93689 [BUGFIX] Introduce `PackageSetup` to unify extension setup 13.4 Author Helmut Hummel Updated 04/16/26, 11:51 Affected Files 7 Patchsets 1 Reviews 2 Verifies
Merged #95393 [BUGFIX] Import page translations onto their parent page Author Benjamin Kott Updated 09/02/26, 21:59 Affected Files 3 Patchsets 3 Reviews 4 Verifies 4	Merged #95582 [BUGFIX] Import page translations onto their parent page 14.3 Author Benjamin Kott Updated 09/02/26, 21:59 Affected Files 3 Patchsets 3 Reviews 2 Verifies 2	Review is missing.
Merged #95555 [BUGFIX] Avoid PHP error on unresolvable page layout Author Stefan Bürk Updated 09/03/26, 09:16 Affected Files 2 Patchsets 3 Reviews 7 Verifies 5	Merged #95594 [BUGFIX] Avoid PHP error on unresolvable page layout 14.3 Author Stefan Bürk Updated 09/03/26, 09:14 Affected Files 2 Patchsets 2 Reviews 2 Verifies 2	Review is missing.
Merged #95912 [TASK] Test reaction field permissions of the impersonated user Author Oli Bartsch Updated 09/21/26, 12:20 Affected Files 4 Patchsets 2 Reviews 4 Verifies 4	Review is missing.
Merged #96163 [BUGFIX] Respect enable field settings for Extbase MM relations Author Georg Ringer Updated 10/02/26, 07:52 Affected Files 3 Patchsets 3 Reviews 4 Verifies 4		Review is missing.
Merged #96413 [DOCS] Document the database storage of form definitions Author Garvin Hicking Updated 10/08/26, 06:22 Affected Files 3 Patchsets 6 Reviews 3 Verifies 3	#96519 [DOCS] Document the database storage of form definitions 14.3 Author Lina Wolf Updated 10/08/26, 06:32 Affected Files 3 Patchsets 1 Reviews Verifies
Merged #96541 [BUGFIX] Initialize CKEditor only after the document is parsed Author Georg Ringer Updated 10/10/26, 05:18 Affected Files 4 Patchsets 4 Reviews 4 Verifies 4	Merged #96584 [BUGFIX] Initialize CKEditor only after the document is parsed 14.3 Author Georg Ringer Updated 10/10/26, 05:18 Affected Files 4 Patchsets 2 Reviews 2 Verifies 2	Review is missing.