feat: add single player mode

packages/lib/client-only/hooks/use-window-size.ts

@@ -0,0 +1,27 @@
+import { useEffect, useState } from 'react';
+
+export function useWindowSize() {
+  const [size, setSize] = useState({
+    width: 0,
+    height: 0,
+  });
+
+  const onResize = () => {
+    setSize({
+      width: window.innerWidth,
+      height: window.innerHeight,
+    });
+  };
+
+  useEffect(() => {
+    onResize();
+
+    window.addEventListener('resize', onResize);
+
+    return () => {
+      window.removeEventListener('resize', onResize);
+    };
+  }, []);
+
+  return size;
+}