Last accessed now works across all your spaces

The home page's Last accessed ordering previously missed anything you opened outside your own area, so for many users the list came up empty or showed odd entries. It now reflects your real recent activity: whatever you opened last — documents, threads, courses — regardless of which space it lives in, most recent first.

Two smaller clean-ups ride along: your own profile node no longer appears in your home catalog or activity feeds, and the home list reliably stays a tidy first-level index (spaces and your own top-level items) instead of occasionally dumping deeply nested pages.