Make the fake x-test language have proper translation for .desktop files
completed by: bunu
mentors: Albert Astals Cid
In KDE we have a fake language called x-test. It adds xx to the beginning and end of each translable string so that developers can use this language and see if they are exposing all strings for translation.
There's some specific strings in .desktop translations that are lists of strings so adding xx to the beginning and the end is wrong.
The script doing the addition needs to detect if we are translating a Keywords or a X-KDE-Keywords string and add the xx text properly