Fix header padding.

Use user_id on sync table.
Fix nav tabs direct linking.

data/interfaces/default/css/plexpy.css

@@ -1,6 +1,7 @@
 body {
     font-family: 'Open Sans', sans-serif;
     color: #fff;
+    padding-top: 50px;
 }
 a {
     color: #eee;