Update site.json (Català)

A lot of notes in catalan, tomorrow i'll complete the rest. 

And please, can you put me the catalan flag on Translation contribution list instead of spanish, I will give to you all the support i can translating all the new things into catalan, but spanish isn't my mother tongue and I can not help in the same way.
Updated rockbdn's flag to Catalan
Merge branch 'patch-3' of https://github.com/Rockbdn/justdelete.me into Rockbdn-patch-3
Fixed google form
Static
Merge branch 'Rockbdn-patch-3'
Fixed merge conflicts
Forgot to merge pulls
Update sites.json
Error fix
Update site.json (Català)

I finished the catalan translation, in a few minutes I'll begin the spanish translation of this.

:)
Fixed merge conflicts
Merge conflicts and errors
Merged linkedin
Static gen