[Web] Decrease footer top margin

data/web/css/build/008-mailcow.css

@@ -174,7 +174,7 @@ nav .glyphicon {
   line-height: 14px;
 }
 .footer {
-  margin-top: 100px;
+  margin-top: 27px;
   margin-bottom: 20px;
   color: #959595;
 }