add some linebreaksbr

conversations/templates/conversations/emails/message.html

@@ -1,4 +1,4 @@
-{{ content }}
+{{ content|linebreaksbr }}
 
 <hr>
 {% if answering %}

proposals/templates/proposals/user_details.html

@@ -37,10 +37,10 @@
 </ul>
 
 <h2>{% trans "Constaints" %}</h2>
-<p>{{ profile.constraints|linebreaksbr }}</p>
+<p>{{ participation.constraints|linebreaksbr }}</p>
 
 <h2>{% trans "Notes" %}</h2>
-<p>{{ profile.notes|linebreaksbr }}</p>
+<p>{{ participation.notes|linebreaksbr }}</p>
 {% endif %}