Fixes#2691. The hovered row of the Home screen's Recent list shows a ×
that takes the file off the list without opening it, and right-click
offers Remove from Recent and Clear Recent Files. The change is stored in
the preferences, so it survives a restart, and the file comes back when it
is opened again. `file.removeRecent {"path"}` does the same for agents.
Rows carry their file name as their accessible label.
F4LCON
b773a39efa