Update (config): enable canonical

Update (migration): Add category type
Add (admin): Add post cliffhanger

app/Http/Controllers/Admin/PostController.php

@@ -80,6 +80,7 @@ public function postUpsert(Request $request)
             'title' => $request->input('title'),
             'slug' => $request->input('slug'),
             'excerpt' => $request->input('excerpt'),
+            'cliffhanger' => $request->input('cliffhanger'),
             'author_id' => intval($request->input('author_id', 1)),
             'featured' => filter_var($request->input('featured'), FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE),
             'featured_image' => $request->input('featured_image'),