rename layout partial

scss/atat.scss

@@ -16,8 +16,8 @@
 @import 'elements/labels';
 @import 'elements/diff';
 
-@import 'components/layout';
 @import 'components/topbar';
+@import 'components/global_layout';
 @import 'components/global_navigation';
 @import 'components/site_action';
 @import 'components/empty_state';