Rename AdminController to SwitchUserController with some optimisations

src/Traits/UserSwitch.php

@@ -7,14 +7,27 @@ namespace Leenooks\Traits;
 
 use Session;
 
+use App\Models\User;
+
 trait UserSwitch
 {
+	/**
+	 * Return if this is a switched user
+	 *
+	 * @return mixed
+	 */
 	public function getSwitchedAttribute()
 	{
 		return Session::get('orig_user');
 	}
 
-	public function isAdmin($id)
+	/**
+	 * If the user record has an admin attribute, we'll return that
+	 *
+	 * @param User|null $user
+	 * @return false|mixed
+	 */
+	public function isAdmin(User $user=NULL)
 	{
 		return isset($this->admin) ? $this->admin : FALSE;
 	}