The importer had exactly two doors, both inside the sidebar's playlist
popup, so the one view whose job is managing playlists could not reach it.
Placed before "New folder": that slot disappears in flat mode and a Row
skips invisible children, so a button after it would slide sideways every
time the mode toggles. No offline gate — the modal recomputes its own and
shows a disabled confirm with the reason, which beats a toolbar button
that vanishes when the network drops.
No new msgids: "Import" is already in all eight catalogs.
cc