Fixes for Moto G5

[CampelloManuel]

As a consequence of testing the app on a Moto G5 (Android 7.0), I:

• fixed bugs on the big widget and the prefs page
• reorder code
• removed excessive calls to the password dialog
• correctly implemented voice search
• added more date formats to choose from
• show more sections when the note list is ordered by date
• UI improvements