Fix profile_header bottom margin, #51807.

app/assets/stylesheets/pages/profile.scss

@@ -222,7 +222,7 @@
   }
 
   .profile-header {
-    margin: 0 auto;
+    margin: 0 $gl-padding 10px;
 
     .avatar-holder {
       width: 90px;

app/views/users/show.html.haml

@@ -36,7 +36,7 @@
         = link_to avatar_icon_for_user(@user, 400), target: '_blank', rel: 'noopener noreferrer' do
           = image_tag avatar_icon_for_user(@user, 90), class: "avatar s90", alt: ''
 
-      .user-info.prepend-left-default.append-right-default
+      .user-info
         .cover-title
           = @user.name