Better folder and file selection in Android
Currently, there are two instances in the app that require "File Open" functionality: Creating a new library based on a local folder as well as creating a new image.
In both cases, the app relies on the FileDialog coming with QML. However, at east with the current Qt 5.5 release, these work not very well on Android (read: They are ugly). It would be good to review if another approach could be used instead.