bugfix: couldn't add note for first team in list
match list defaults to expanded
added (invisible) spinner for sorting matches
added export to JSON into database
can import notes from json
helper methods for exporting/importing entire db
added dialogs package
fixed bugs with reading matches
can export/import database from settings menu
2 bug fixes:
- Red and Blue alliances swapped on export
- Notes would duplicate on import
moved hiding next/previous match arrows to UI thread. Fixes FC