[TASK] Avoid ext:fluid TemplateView in tests

There is little reason to use ext:fluid
TemplateView instead of fluid standalone
TemplateView in functional tests.
ext:fluid TemplateView is about to be
phased out.
The test switches existing test usages
to use fluid standalone TemplateView.

Resolves: #104711
Related: #104708
Related: #104710
Releases: main
Change-Id: Ie50c908b4b69cbd691cd7957fc0793d1ddaa9050
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/85741


Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Simon Praetorius <simon@praetorius.me>
Reviewed-by: Simon Praetorius <simon@praetorius.me>
Tested-by: Stefan Bürk <stefan@buerk.tech>