[TASK] Remove superfluous space in InitializeCodeEditorInEditFileForm

The identifier in the `AsEventListener` PHP attribute uses a space.
Allthough this technically works, we do not use spaces elsewhere
for event listener identifiers.

This change therefore removes the superfluous space.

Resolves: #103041
Related: #102440
Releases: main
Change-Id: I159ff18e4769e71cba120ccb1dd2b668fd825aea
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/82784


Reviewed-by: Oliver Bartsch <bo@cedev.de>
Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>