add feature to create new crimes; remove autogenerated crimes
add subtitle with show/hide options that handles device rotation for Android 11+
break listfragment up to inflate its own layout and display an 'new crime' button when no crimes exist
don't show text in action bar, just icons
add fs persistence by storing serialized crimes to disk
add long-touch context menu for deletion of Crimes from the Crime List
add contextual action mode for bulk crime deletion