Make sender name more obviously clickable.

(imported from commit e75a6a051c939dd780d4815385b9c1eef0a07255)

zephyr/jstemplates/message.html

@@ -63,8 +63,7 @@
               onclick="userinfo_popover(event, this, {{id}});"
               onmouseover="show_email({{id}});"
               onmouseout="hide_email();">
-            <span class="sender_name">
-              {{sender_full_name}}</span>
+            <a class="sender_name">{{sender_full_name}}</a>
             <span class="sender_email invisible">{{sender_email}}</span>
         </span>
     {{/include_sender}}

zephyr/static/styles/zephyr.css

@@ -164,6 +164,7 @@ td.pointer {
 }
 
 .sender_name {
+    color: black;
     font-weight: bold;
 }