[Enhancement] Allow configuration of media container format (#383)

* Adds media container to media_profiles and updates option builder

* Added media container to media profile form

priv/repo/migrations/20240910173050_add_media_container_to_media_profiles.exs

@@ -0,0 +1,9 @@
+defmodule Pinchflat.Repo.Migrations.AddMediaContainerToMediaProfiles do
+  use Ecto.Migration
+
+  def change do
+    alter table(:media_profiles) do
+      add :media_container, :string
+    end
+  end
+end