test: add theme command registry tests and minor fixes

src/components/CommandPalette.tsx

@@ -51,7 +51,7 @@ export function CommandPalette({ open, commands, onClose }: CommandPaletteProps)
   useEffect(() => {
     if (open) {
       setQuery('') // eslint-disable-line react-hooks/set-state-in-effect -- reset on open
-      setSelectedIndex(0) // eslint-disable-line react-hooks/set-state-in-effect -- reset on open
+      setSelectedIndex(0)
       setTimeout(() => inputRef.current?.focus(), 50)
     }
   }, [open])

src/components/SearchPanel.tsx

@@ -209,7 +209,6 @@ function SearchContent({
                   onMouseEnter={() => onHover(i)}
                 >
                   <div className="flex items-center gap-2">
-                    {/* eslint-disable-next-line react-hooks/static-components -- icon from static map lookup */}
                     <TypeIcon width={14} height={14} className="shrink-0" style={{ color: typeColor ?? 'var(--muted-foreground)' }} />
                     <span className="min-w-0 flex-1 truncate text-[13px] font-medium text-foreground">{result.title}</span>
                     {noteType && (