Add "Download logs" button to individual stream settings #1077
Description
Make sure all stream types store a log file / set of log files containing all of the logs they themselves send to journalctl as well as any logs their underlying stream provider (go-librespot, shairport-sync, etc.) provide and then expose a "download logs" button on the stream edit modal that downloads a zip of the relevant files to the user's device
This will help internally so we can stop saying "I had this issue at home, but I don't really have info on it" and could help with support cases in general to streamline log reading so we don't need to skim over 37 days of "API 200 OK" happening every 5 minutes to find the actual issue at hand