[Web] Small css fixes

data/web/css/mailcow.css

@@ -42,6 +42,13 @@
 .btn {
   text-transform: none;
 }
+.navbar-nav {
+  margin: 0;
+}
+.navbar-fixed-bottom .navbar-collapse, 
+.navbar-fixed-top .navbar-collapse {
+  max-height: 1000px
+}
 .glyphicon-spin {
   font-size:12px;
   -webkit-animation: spin 2000ms infinite linear;
@@ -127,9 +134,6 @@ legend {
 nav .glyphicon {
   font-size: 12px !important;
 }
-.logged-in-as {
-  border-left: 1px solid #E7E7E7;
-}
 #top {
   padding-top: 70px;
 }