adjusted delete draft button's title to make it clearer

Author: Oaphi

app/views/shared/_draft_tools.html.erb

@@ -9,7 +9,7 @@
   <a href="javascript:void(0)"
      class="button is-muted is-outlined is-icon-only js-delete-draft"
      aria-label="Delete draft"
-     title="Delete draft"
+     title="Delete saved draft"
      role="button">
     <i class="fas fa-trash has-color-red"></i>
   </a>