Reformulate ('No notifications yet' is not appropriate if they are hidden...

Reformulate ('No notifications yet' is not appropriate if they are hidden because they are already read. 'No notification to show' is better')

front/src/views/Notifications.vue

@@ -24,7 +24,7 @@
           </tbody>
         </table>
         <p v-else>
-          <translate>No notifications yet.</translate>
+          <translate>No notification to show.</translate>
         </p>
       </div>
     </section>