Improved search functionality - redux

[Fripplebubby]

Picks up from https://github.com/fondberg/spotcast/pull/363 and rebases it again on latest changes.

Added more options to support more things that are in the spotify API as well, like "genre", "audiobook", things like that. Some changes came from running the linters as well, I will highlight which changes came from me and which did not for easier reviewing. Overall this is a breaking change to the service api (replaces the "search" input entirely), which might be too big of a change to make here, curious to hear thoughts on that - but I made these changes to accommodate my use case which you can read more about here.