Fix delete user message not showing spaces

app/assets/javascripts/admin/users/components/modals/delete_user_modal.vue

@@ -117,7 +117,7 @@ export default {
     <p>
       <gl-sprintf :message="s__('AdminUsers|To confirm, type %{username}')">
         <template #username>
-          <code>{{ username }}</code>
+          <code class=gl-white-space-pre-wrap>{{ username }}</code>
         </template>
       </gl-sprintf>
     </p>