Fixed tools not module

Author: LCSOGthb

src/tools/QRGenerator.tsx

@@ -0,0 +1,5 @@
+import React from "react";
+
+export default function QRGenerator() {
+  return <div>QRGenerator</div>;
+}

src/tools/UnitConverter.tsx

@@ -0,0 +1,5 @@
+import React from "react";
+
+export default function UnitConverter() {
+  return <div>UnitConverter</div>;
+}