fix

addons/LsActivity/backend/views/Activity/edit.php

@@ -12,7 +12,7 @@ $this->title = 'Activity';
 $this->params['breadcrumbs'][] = ['label' => 'Activities', 'url' => ['index']];
 $this->params['breadcrumbs'][] = $this->title;
 ?>
-
+ 
 <div class="row">
     <div class="col-12">
         <div class="box">