Change user settings column width

app/views/profiles/gpg_keys/index.html.haml

@@ -3,12 +3,12 @@
 = render 'profiles/head'
 
 .row.prepend-top-default
-  .col-lg-3.profile-settings-sidebar
+  .col-lg-4.profile-settings-sidebar
     %h4.prepend-top-0
       = page_title
     %p
       GPG keys allow you to verify signed commits.
-  .col-lg-9
+  .col-lg-8
     %h5.prepend-top-0
       Add a GPG key
     %p.profile-settings-content