Add cancel button on item comment

app/templates/inventory/comment_item.html

@@ -71,6 +71,7 @@
       {{ form.text(class_="form-control", required=True) }}
     </div>
     <button type="submit" class="btn btn-primary">Submit</button>
+    <a class="btn btn-danger" href="{{ url_for('inventory.view_item', ics_id=item.ics_id) }}">Cancel</a>
   </form>
 
   <hr>