Adds a dismissible top-of-screen banner to the Pinned Notes, Bookmarks,
Old Bookmarks, and Bookmark Set (detail) screens that appears when one
or more listed items have been deleted by their author (kind-5 deletion,
pubkey-matched via DeletionIndex). Tapping "Remove from list" rewrites
the underlying list event (NIP-51 kind 10001/10003/30001/30003) with
the deleted entries stripped out and broadcasts it once.
The scan is scoped to each screen's loaded list (typically <20 items)
and runs only while composed, so it avoids the performance hit of
hooking Account.deletedEventBundles, which fires for every kind-5
deletion in the firehose. Public and private (NIP-44 encrypted)
bookmarks are both cleaned in a single resign() call per list.
Claude
85fcf50df9