fix review feedback: restart race, listener cleanup, stable keys, accessibility

app/src/components/ui/toaster.tsx

@@ -25,7 +25,7 @@ export function Toaster() {
           <ToastClose />
         </Toast>
       ))}
-      <ToastViewport className={isPlayerOpen ? 'sm:bottom-32' : ''} />
+      <ToastViewport className={isPlayerOpen ? 'sm:bottom-44' : ''} />
     </ToastProvider>
   );
 }

app/src/components/ui/toggle.tsx

@@ -26,6 +26,7 @@ const Toggle = React.forwardRef<HTMLButtonElement, ToggleProps>(
         }}
         className={cn(
           'relative inline-flex h-5 w-9 shrink-0 items-center rounded-full transition-colors',
+          'focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2',
           checked ? 'bg-accent' : 'bg-muted-foreground/25',
           disabled ? 'opacity-50 cursor-not-allowed' : 'cursor-pointer',
           className,