Fixes Magic Arena's broken full screen implementation on macOS

arena-macos-fixes.sh

# this forces Arena into full screen mode on startup, set back to 3 to reset
# note that if you go into the Arena "Graphics" preference panel, it will reset all of these
# and you will need to run these commands again
defaults write com.wizards.mtga "Screenmanager Fullscreen mode" -integer 0

# replace 1680 and 1050 with your full screen resolution, or any scaled resolution your display supports
# to find the scaled resolutions, go to System Preferences --> Display
defaults write com.wizards.mtga "Screenmanager Resolution Width" -integer 1680
defaults write com.wizards.mtga "Screenmanager Resolution Height" -integer 1050

# this will disable the asset check on the next run, note that it gets set back to 1 every time you
# launch Arena, so you could have this be part of a startup script if you wanted
# in theory you could run `defaults write com.wizards.mtga "HashFilesOnStartup" -integer 0`, but that also
# seemingly gets reset on shutdown
defaults write com.wizards.mtga "HashFilesSkippedOnce" -integer 0