Misc refactors 2024-03-15 (#90)

* Fixed TV show output template

* Discard jobs if record not found; hopefully addressed timing-related source deletion bug

test/pinchflat/downloading/media_download_worker_test.exs

@@ -95,5 +95,9 @@ defmodule Pinchflat.Downloading.MediaDownloadWorkerTest do
 
       assert media_item.media_size_bytes > 0
     end
+
+    test "does not blow up if the record doesn't exist" do
+      assert :ok = perform_job(MediaDownloadWorker, %{id: 0})
+    end
   end
 end