[FEATURE] Add stdWrap to config.pageTitleSeperator

Add stdWrap to config.pageTitleSeperator

Change-Id: I88c2141167414b184f158d09f40df3aa36390b4a
Resolves: #35223
Releases: 6.1
Reviewed-on: https://review.typo3.org/18123
Reviewed-by: Alexander Opitz
Tested-by: Alexander Opitz
Reviewed-by: Benjamin Mack
Tested-by: Benjamin Mack