Add the grid<->sidepanel view toggle to the Artists toolbar (group select is
now grid-only, matching Tauri) and the sidepanel two-column layout: a
self-scrolling left list of SidepanelArtistRows (round thumb + name, selected
highlight) that calls select-artist, and a right column with the 5-state
machine (select-hint / loading / error / no-albums / sections). Each release
section renders its title + a flat AlbumCollectionView grid; a footer links to
the full artist page. The other-flick branch now excludes the sidepanel so the
two columns scroll independently.
cc
vicrodh
0b12d102ce