4.21 update is available

https://github.com/JosefNemec/Playnite/releases/tag/4.21

• New: Super Nintendo and Wii U/Switch Pro Controller fullscreen buttons

• New: Menu option to install scripts extensions

• New: Added definition for D-Fend Reloaded

• Fix: Updated RetroArch profiles

• Fix: Some non-EA Origin games have invalid Play action

• Fix: Metadata download fails sometimes

• Fix: Game selection highlighting not working properly in Fullscreen mode

• Fix: Detection if the game is running not working properly sometimes

• Fix: Crash when switching to fullscreen while downloading metadata

• Fix: Crash related to gamepad handling