[BUGFIX] Prevent duplicated special char in backend breadcrumb

Prevent duplicated special char conversion of page title in
TYPO3 backend breadcrumb and fix title cropping

Resolves: #81242
Releases: master, 8.7
Change-Id: Id7710d8d8f79e20b20f43569558833d3d3f68f16
Reviewed-on: https://review.typo3.org/52856


Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>