feat: add breadcrumb in admin area

- add Breadcrumb library and service
- update authorizations
- add missing routes to avoid 404 links in breadcrumb
- add svg_helper globally in base controller
- update purgecss config to check .ts files

closes #17

app/Entities/User.php

@@ -12,6 +12,12 @@ class User extends \Myth\Auth\Entities\User
      */
     protected $podcasts = [];
 
+    /**
+     * The podcast user is contributing to
+     * @var \App\Entities\Podcast
+     */
+    protected $podcast;
+
     /**
      * Array of field names and the type of value to cast them as
      * when they are accessed.
@@ -20,6 +26,7 @@ class User extends \Myth\Auth\Entities\User
         'active' => 'boolean',
         'force_pass_reset' => 'boolean',
         'podcast_role' => '?string',
+        'podcast_id' => '?integer',
     ];
 
     /**
@@ -41,4 +48,19 @@ class User extends \Myth\Auth\Entities\User
 
         return $this->podcasts;
     }
+
+    public function getPodcast()
+    {
+        if (empty($this->podcast_id)) {
+            throw new \RuntimeException(
+                'Podcast_id must be set before getting podcast.'
+            );
+        }
+
+        if (empty($this->podcast)) {
+            $this->podcast = (new PodcastModel())->find($this->podcast_id);
+        }
+
+        return $this->podcast;
+    }
 }