[Enhancement] Allow setting preference for video/audio codec (#255)

* [WIP] started on codec parser

* Added codec preferences to settings model

* [WIP] added basic codec preference fields to settings form

* Hooked up the backend portion of the codec preference work

* Added codec settings to frontend

* Ensured you can remove codec data

lib/pinchflat_web/controllers/settings/setting_html.ex

@@ -1,6 +1,8 @@
 defmodule PinchflatWeb.Settings.SettingHTML do
   use PinchflatWeb, :html
 
+  alias Pinchflat.Downloading.CodecParser
+
   embed_templates "setting_html/*"
 
   @doc """