Change Channel to Source (#12)

* Ensure channel detail lookup doesn't download the video - oops

* Ran the needful migrations for replacing channels with sources

* got media source test back working

* channel tasks test

* Media indexing worker test

* media tests

* Got all tests working except controller tests

* got all tests working

* Renamed Channel struct to Source

* renamed ChannelTasks

* More renaming; renamed channel details module

* Removed Channel yt-dlp module, instead throwing things in the VideoCollection module

* Renamed what looks like the last of the outstanding data

lib/pinchflat/tasks/task.ex

@@ -7,11 +7,11 @@ defmodule Pinchflat.Tasks.Task do
   import Ecto.Changeset
 
   alias Pinchflat.Media.MediaItem
-  alias Pinchflat.MediaSource.Channel
+  alias Pinchflat.MediaSource.Source
 
   schema "tasks" do
     belongs_to :job, Oban.Job
-    belongs_to :channel, Channel
+    belongs_to :source, Source
     belongs_to :media_item, MediaItem
 
     timestamps(type: :utc_datetime)
@@ -20,7 +20,7 @@ defmodule Pinchflat.Tasks.Task do
   @doc false
   def changeset(task, attrs) do
     task
-    |> cast(attrs, [:job_id, :channel_id, :media_item_id])
+    |> cast(attrs, [:job_id, :source_id, :media_item_id])
     |> validate_required([:job_id])
   end
 end