* Use `vars()` instead of directly accessing `__dict__`
* Remove `auto_update` from RareGame's metadata
* Correct check for updating the Steam App ID (We want to keep any changes from the user)
* Collect both Wine and Proton prefixes when removing overlay registry keys.
* Add few convenience functions in config_helper and paths.
This allows compatibility tools that use the SteamAppId environment
variable to make decisions or apply fixes do their job more accurately.
Also use the stored variable to provide a link to protondb through
the grade label in GameInfo.
The steam grades now use the orjson library to load Steam's ~6MB
database faster.
