Make delete link flush left when there’s no button

The delete link was designed to be used with a button, where it needs
some padding to separate it from the button.

We now have a case where it’s being used without an accompanying button,
so we need a variation without that padding.

app/assets/stylesheets/components/page-footer.scss

@@ -39,6 +39,10 @@
 
   }
 
+  &-delete-link-without-button {
+    padding-left: 0;
+  }
+
   &-secondary-link {
     display: block;
     margin-top: $gutter;