v0.23.1

Full Changelog: v0.23.0...v0.23.1

• Proper charging support
• Idle shutdown at 5 minutes
• Reset game (don't auto-load save state) in launch options
• Press X in keyboard to clear contents
• Many bug fixes.

fix: exclude neogeo.zip from game list
docs: include update instructions
feat: retain selection for some sorts only
feat: add idle shutdown (5 mins) (#27)
feat: proper charging state, separate from suspend
feat: add back button hint to keyboard (#30)
feat: add reset game to launch options (#28)
fix: activity tracker button hints (#29)
feat: press X to clear keyboard contents (#30)
fix: rename +/- to START/SELECT
fix: keyboard passing unused inputs through (#30)
fix: retain selection when launching recents (#31)
docs: update README.md