Search playlists and songs async

[trevren11]

Did you search the existing issue to make sure this is not a duplicate?
Yes

Is your feature request related to a problem? Please describe.
It would be nice if all of the requests could be done asynchronously, instead of going in a nice order, it could go through all the playlists async, and then for each song do the request async. This would speed up the time to do the requests a lot I would assume, even with only ~20 threads running

Describe the solution you'd like
In the playlists loops spin up new threads, in the search loops spin up other threads. Even just one or the other would be really useful

Describe alternatives you've considered
None

Additional context
None

[trevren11]

I got the async calls working, but I think I will just make it optional, it goes really fast, but it does take up a fair bit of processing, I am not running it in a docker container but rather occasionally so I might make a pull request to modify this all at once