Improve the list of regular expressions

* Complete and sort the list of regular expressions in a nested table.
* Escape special characters.
Adapted changes from lionel-m to german
Merge branch '2.11' into 3.0
Added missing regular expressions for Contao 3.0
Translated missing regular expressions to german
Merge branch '3.0' into 3.1
Added missing regular expressions for Contao 3.1
Translated missing regular expressions to german