Cards in DeckViewScreen can be filtered by Creatures, Lands and Other Spells.
refactor: extract SampleHandActionButton class.
can now view the "game.log" from within Magarena using new menu option available from main game screen.
new generic TextFileReaderScreen can be used to display contents of any text file in Magarena.
notify user only if UI is present, the prompt is blocking the program from ending when it crashes in automated testing