F13 Voting App changes

Below is the list of changes in the F13 Voting App.

Bugfix

Scrolling bug fix

Fixed an issue with scrolling on very short lists of results

Improvements

QR code export

User can export own QR code directly from the app after it's loaded

Notification history

All received notifications are now accessible in a dedicated section

Category added to vote recap

User can easily view the category of each voted proposal in pending and submitted votes summary

Other minor fixes