[Enhancement] Allow manual indexing/downloading (#162)

* Added controller actions and UI for forcing index and download actions

* Added forcing of downloads for media items

lib/pinchflat_web/router.ex

@@ -32,7 +32,12 @@ defmodule PinchflatWeb.Router do
     resources "/search", Searches.SearchController, only: [:show], singleton: true
 
     resources "/sources", Sources.SourceController do
-      resources "/media", MediaItems.MediaItemController, only: [:show, :edit, :update, :delete]
+      post "/force_download", Sources.SourceController, :force_download
+      post "/force_index", Sources.SourceController, :force_index
+
+      resources "/media", MediaItems.MediaItemController, only: [:show, :edit, :update, :delete] do
+        post "/force_download", MediaItems.MediaItemController, :force_download
+      end
     end
   end