[BUGFIX] Keep rendering of newLanguageSelector with Page+List module in sync

The list module shows the dropdown of possible
translations now in the same automatic width (instead
of the full width) - the same way as in page
module.

Resolves: #100306
Releases: main
Change-Id: I94dfd93f2d94a73b90a839183590da613af0cf84
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78262


Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>