The profile chip in the sidebar footer used a chevron-down icon, which
universally signals "this opens an inline popover," but its handler
just navigates to ely://settings/profiles. Swap to chevron-right so
the icon honors what the click actually does.
The per-row tab close (×) button hovered with rgba(0x281e1414) — 8%
alpha — which read as no hover at all on the cream panel. Bump to
~30% alpha (CLOSE_HOVER_BG) so the hit target snaps in like Arc/Dia.