Convert included JS files to modules

index.html

@@ -68,8 +68,8 @@
 		</div>
 	</div>
 	<script type="module" src="src/main.ts"></script>
-	<script src="src/touch-controls.js"></script>
-	<script src="src/debug.js"></script>
+	<script src="src/touch-controls.js" type="module"></script>
+	<script src="src/debug.js" type="module"></script>
 </body>
 
 </html>