🔧 Refactored the DnD grid scaffold a bit

src/client/components/Grid.tsx

@@ -0,0 +1,16 @@
+import React from "react";
+
+export function Grid({ children, columns }) {
+  return (
+    <div
+      style={{
+        display: "grid",
+        gridTemplateColumns: `repeat(${columns}, 1fr)`,
+        gridGap: 10,
+        padding: 10,
+      }}
+    >
+      {children}
+    </div>
+  );
+}