- Renamed Options state into OptionsMenu, and created Options class for solely handling user options. Moved everything unrelated to the actual options menu into the static Options class.
- OptionsMenu no longer has static fields.
- Refactored option tabs into an enum, which makes the code much cleaner.
Also fixed a bug where global volume wasn't being used on container initialization.
Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>