[TASK] Bring back the exception code in exception messages

If an exception identifies itself with a code, display it
next to the Exception title.

Change-Id: Ib24b7ce4e0bef426dd4e0f4b7f25c4f5338e02c6
Resolves: #86238
Releases: master
Reviewed-on: https://review.typo3.org/58260


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Richard Haeser <richard@maxserv.com>
Tested-by: Richard Haeser <richard@maxserv.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>