Improve episode-level compatability with media center apps (#86)

* Add media profile presets (#85)

* Added presets for output templates

* Added presets for the entire media profile form

* Append `-thumb` to thumbnails when downloading (#87)

* Appended -thumb to thumbnails when downloading

* Added code to compensate for yt-dlp bug

* Squash all the commits from the other branch bc I broke things (#88)

test/support/fixtures/sources_fixtures.ex

@@ -34,6 +34,20 @@ defmodule Pinchflat.SourcesFixtures do
     source
   end
 
+  @doc """
+  Generate a source with metadata.
+  """
+  def source_with_metadata(attrs \\ %{}) do
+    merged_attrs =
+      Map.merge(attrs, %{
+        metadata: %{
+          metadata_filepath: Application.get_env(:pinchflat, :metadata_directory) <> "/metadata.json.gz"
+        }
+      })
+
+    source_fixture(merged_attrs)
+  end
+
   def source_attributes_return_fixture do
     source_attributes = [
       %{