Kunst keeps running as zombie process when sxiv is closed

[bratekarate]

If sxiv is closed, kunst keeps running but seems to be rather a zombie process. It does not reopen sxiv on song change and there seems to be no use for the running process.

My proposal is to either terminate the kunst script if sxiv is closed or make the script recoverable (e.g. reopening sxiv on song change, prompting user to press a key to reopen sxiv).