We recently added new User session settings for customizing a Quick Access

hotbar for actions, and for toggling the Ship It! confirmation dialog.

The session API endpoint now handles updating these settings. However,

when calling the User session API endpoint from our frontend, we failed

to plumb through the local site to the request URL. This lead to a 404

response on local site servers (such as on RBCommons).
This change passes the local site for the current review request through

to the API request. Now the User session settings can be customized as

intended on local site servers. For a user that has access to multiple

local sites, the settings are shared accross all the local sites.

Ran unit tests, but these currently fail due to issues unrelated to

  this change.

Tested the following on a local site, and a non-local site:

- Tested toggling the Ship It! confirmation.

- Tested customizing the Quick Access actions hotbar.