fix room.txt

res/templates/room.txt

 {{ room.title }}
-You've been invited, join at {{ room.link }}
 
-{% for notif in room.notifs %}
-{% include 'notif.txt' with context %}
-{% endfor %}
+{% if room.invite %}
+    You've been invited, join at {{ room.link }}
+{% else %}
+    {% for notif in room.notifs %}
+        {% include 'notif.txt' with context %}
+    {% endfor %}
+{% endif %}