Improvements on FDroid page

[kominoshja]

Here are some improvements that we can do to our FDroid page

• [ ] Add screenshots
• [ ] Add changelog
• [ ] Fix donation link
• [ ] Improvements on the icon
• [ ] Header image on FDroid

[rskikuli]

Thanks Boris. Can I assign you @sidorelauku for this, since you have knowledge of the process needed to make these changes - I think.

[Poussinou]

Two examples here and here. You can even write the short description and the full description that will appear in F-Droid.