Checklist Action-Menu easier clickable

- especially useful at mobile devices

client/components/cards/checklists.styl

@@ -142,5 +142,4 @@ textarea.js-add-checklist-item, textarea.js-edit-checklist-item
 
 .checklist-details-menu
   float: right
-  padding-top: 6px
-  margin-right: 10px
+  padding: 6px 10px 6px 10px