Home holds the workspace's overview for every member: teams' rhythm, quiet changes, spend tied to work, usage and members, with dollars for billing only

Follow-up to #290: the workspace's overview data moved into Code's Overview (code-gated). It belongs on Home, which every member sees, beside the week, Your move and Live. Code's Overview goes back to Code only. Dollar figures (spend, provider costs, usage money) show only to owners and billing managers.