aba4694377
* [web] Move ARS Write and Cite behind separate feature flag * [web] Use isSplitTestEnabled function * [web] Only load Write and Cite if project has ARS access * [web] Enable Write and Cite ARS by default * [web] Fix condition for loading write and cite ref sources * [web] Remove references settings button in free projects GitOrigin-RevId: c4f3b7c60da9864409c788dcf34bdc77347441a8