Revert "fix transition"

This reverts commit 9909bbfbbe73a7ecdbf1228dfda7e013c97a5b62.
Revert "fix JS path"

This reverts commit 9f29cc741c2b3a39f2971b010ad163e32b5d8242.
Revert "side navigation experiment"

This reverts commit 2c410a98e4f9ce30146fd7d811049ba0d8116479.