[Enhancement] Add rate limiting to yt-dlp requests; prevent saving Media Items when throttled by YouTube (#559)

* Added sleep interval to settings

* Added new sleep setting to yt-dlp runner and added tests

* Added setting for form; updated setting name

* Updated form label

* Prevented saving/updating of media items if being throttled by youtube

* Added the bot message to the list of non-retryable errors

* Fixed typo

test/pinchflat/downloading/media_download_worker_test.exs

@@ -127,6 +127,19 @@ defmodule Pinchflat.Downloading.MediaDownloadWorkerTest do
       end)
     end
 
+    test "does not set the job to retryable if youtube thinks you're a bot", %{media_item: media_item} do
+      expect(YtDlpRunnerMock, :run, 2, fn
+        _url, :get_downloadable_status, _opts, _ot, _addl -> {:ok, "{}"}
+        _url, :download, _opts, _ot, _addl -> {:error, "Sign in to confirm you're not a bot", 1}
+      end)
+
+      Oban.Testing.with_testing_mode(:inline, fn ->
+        {:ok, job} = Oban.insert(MediaDownloadWorker.new(%{id: media_item.id, quality_upgrade?: true}))
+
+        assert job.state == "completed"
+      end)
+    end
+
     test "it ensures error are returned in a 2-item tuple", %{media_item: media_item} do
       expect(YtDlpRunnerMock, :run, 2, fn
         _url, :get_downloadable_status, _opts, _ot, _addl -> {:ok, "{}"}