Fixes the oblong shape of the navbar profile image

Border radius does not play nicely with padding. Changed to margin and 
adjusted the top margin so it sits in the middle.

roomlist/static/css/style.css

@@ -127,8 +127,8 @@ outline-offset: none;
 .navbar-profile {
   display: block;
   float: left;
-  margin-top: -2px;
-  padding-right: 8px;
+  margin-top: -6px;
+  margin-right: 8px;
 }
 
 .profile-image {