Start integrating playlist support (#13)

* [WIP] updated the output of VideoCollection to include playlists

* Updated source's name to collection_name; supported playlist ID/name fetching

* Hooked up collection_type to form; refactored enqueue_pending_media_downloads

* Added friendly_name to form

* Added media profile link to source view

* Updates comment

priv/repo/migrations/20240202190351_rename_source_name_to_collection_name.exs

@@ -0,0 +1,11 @@
+defmodule Pinchflat.Repo.Migrations.RenameSourceNameToCollectionName do
+  use Ecto.Migration
+
+  def change do
+    rename table(:sources), :name, to: :collection_name
+
+    alter table(:sources) do
+      add :friendly_name, :string
+    end
+  end
+end