Added new Regex for prosiebensat1 Extractor Description. Fixes #11810 (#11929)

Added new Regex for prosiebensat1 Extractor Description. Fixes #11810 (#11929)

* Added new Regex for prosiebensat1 Extractor Description. Fixes #11810

* Using _og_search_description() as a Fallback for Description-Regex

* Using _og_search_description() as a Fallback for Description-Regex - Second try

* Also added fallback regex

* Using _og_search_description() as a Fallback for Description-Regex - Third try

* removed fatal=False from search for description regex. default=None should be preferred only

* Using fatal=false for _og_search_description

* Revert "Using fatal=false for _og_search_description"

This reverts commit 2b7e123f9d0f2bd6ada54fa8e4e6035fece5dbf4.

* Deleted default=None Parameter for _og_search_property