Keep delete affordances neutral until the confirmation

Row delete buttons, overflow-menu delete items and per-row revoke
buttons painted red in lists, so a list of tokens or shares read as a
wall of alarms. They now sit in the muted tone (foreground on hover)
or as an outline button; the red is kept for the confirmation dialog
that every one of them opens, and for the danger zones, which are a
destructive card-wide action by design.

src/components/illness/episode-menu.tsx

@@ -106,7 +106,6 @@ export function EpisodeMenu({
           ) : null}
           <DropdownMenuSeparator />
           <DropdownMenuItem
-            variant="destructive"
             onSelect={(e) => {
               e.preventDefault();
               setConfirmOpen(true);