Merge branch '37844-layout-nav-space' into 'master'

Remove extra space between profile header and navbar

Closes #37844

See merge request gitlab-org/gitlab-ce!14275

app/assets/stylesheets/framework/nav.scss

@@ -328,7 +328,7 @@
   border-bottom: 1px solid $border-color;
   transition: padding $sidebar-transition-duration;
   text-align: center;
-  margin-top: $header-height;
+  margin-top: $new-navbar-height;
 
   .container-fluid {
     position: relative;