Move "overrides" to a config file

[LeagueOfPoro]

Move the hardcoded Twitch overrides to a separate config file to make them user-editable.

[MrBartusek]

I would actually keep the hardcoded ones and add the ability to override them and add new ones in config. I don't think there is a need to keep a complete list in the config file since I guess most of the users when updating the app keep the old config file.

[LeagueOfPoro]

Merging the config with hardcoded ones is a good idea.

[gvmii]

Anyone working on this? I'd like to try.