All custom apps should have nice screenshots

[kelson42]

At least as good as the one from wikimed (made with appure.io).

[kelson42]

This is a good job for a civilist or intern.

[PK284]

@kelson42 if this task is yet not completed I would like to solve this.

[Popolechien]

@PK284 Please go ahead. You can post the screenshots here.

[gouri-panda]

@kelson42 All the custom apps have been updated except wikimedar and wikimedja for fault zim files.

[kelson42]

@gouri-panda ??? what is the relation between zim filrs and screenshot? where are the tickets for these fault zim files?