[HOLD for payment 2024-10-22] [Workspace Feeds] Create and then clean up beta for the workspace feeds

[mountiny]

Problem

For the workspace feeds project, we are going to work on adding this feature to newDot and we want to make sure its development with tight deadline is not causing deploy blockers.

Solution

Hence we would like to add workspaceFeeds beta that will help us easy the roll out of this feature.

[melvin-bot]

Triggered auto assignment to @VictoriaExpensify (NewFeature), see https://stackoverflowteams.com/c/expensify/questions/14418#:~:text=BugZero%20process%20steps%20for%20feature%20requests for more details. Please add this Feature request to a GH project, as outlined in the SO.

[mountiny]

Web PR https://github.com/Expensify/Web-Expensify/pull/42489