Android: Request a setting to open the view in any one of my folders

### Describe the feature you'd like to request

I'm syncing between Firefox and chromium. When I open the Android app, I'm presented with the reserved folders.

I'd like to have a setting that allows me to default to having any one of these folders open up when the Android app is started, and persist the setting.

This will save a frequent tap when I have to open up the app to find a bookmark.

### Describe the solution you'd like

- While in Android app settings: choose any folder, such as Bookmark Bar, to be the default folder to open up
- Later open up Floccus, see the contents of Bookmark Bar

### Describe alternatives you've considered

Extra tap to choose Bookmark Bar, every time I hope the app.