Fix wrong app name on login page

templates/login.j2

@@ -8,7 +8,7 @@
 
 {% block navbar %}
 <nav class="navbar navbar-expand-lg sticky-top navbar-dark bg-dark">
-    <div class="navbar-brand">Technical Incompetence Link Shortener</div>
+    <div class="navbar-brand">Read TI Later</div>
 </nav>
 {% endblock %}