[TASK] Add missing CSS class to table of sorting module

The sorting module misses a class "db_list_normal"
 if a sorting of pages should be done.

Resolves: #52445
Releases: 6.2
Change-Id: I04a44ea3bd53991338bdc74abfe6470562a4a5ea
Reviewed-on: https://review.typo3.org/24235
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters