Add category [feature request]

[sorjgdojbodjhdo]

Hi,

A grid to show available feeds without search implemented is great if one has only a small feed but with hundreds of podcasts it can become tricky to find a particular feed.

This is why I think it would be a great idea to be able to be able to create categories or to have a search feature or both.

From what I saw, the app tries to stay lean but I don't think those two small feature would make the app bloated. I've been looking for an app like this for ages :)