* DEV: Change sidebar header dropdown to use wait_for_animation
Introduced in 54351e1b8a9b070bfce6a478e9912a76f1545a54, this
helper should remove the need to have to add the .animated
CSS class in JS for the sidebar.
* DEV: Revert spec change
When the `navigation_menu` site setting has been set to `sidebar` or
`header dropdown`, overriding the site setting via the `navigation_menu`
query params did not work.
Follow-up to c47015b861fa538003d4d7d1267f9acedc6d2948
What does this change do?
This commit the client to override the navigation menu setting
configured by the site temporarily based on the value of the
`navigation_menu` query param. The new query param replaces the old
`enable_sidebar` query param.
Why do we need this change?
The motivation here is to allow theme maintainers to quickly preview
what the site will look like with the various navigation menu site
setting.
