[Feature Request] App / Game Categorisation

[nascentt]

Similar to how the roms section of Daijishou lets you filter by genres, it'd be great to have the ability to show android apps and games by their category. Would make it so much easier to organise and find games and apps. Even better paired with https://github.com/TapiocaFox/Daijishou/issues/628

For a good example of how their works and can be achieved, I reference the amazing opensource AppLauncher+