Replaced No Notifications by its translation string

templates/_user_notifications.html

@@ -18,7 +18,7 @@
 		{{end}}
 	</table>
 	{{else}}
-	<h2>No notifications</h2>
+	<h2>{{ call $.T "no_notifications" }}</h2>
 	{{end}}
 	{{end}}
-{{end}}
+{{end}}