First off, thanks for you work on this!

Just an idea but I feel like there could be a better configuration message than [?] Active modules:. To someone new it's not incredibly intuitive what this is referring to (I personally thought this was referring to modules I DON'T want to touch).

Maybe something alone the lines of Select the modules you want to clean:?

You could add subtext Warning: Clearing cache files may result in temporary performance changes in some applications. to educate users what this is doing since it's obviously always a little scary to have something deleting files on your computer.

Just some thoughts, I'd be glad to open a PR if you see this as helpful.