sorted mime type problem

src/render.js

@@ -1,4 +1,4 @@
-import { Conductor } from "./conductor";
+import { Conductor } from "./conductor.js";
 
 export class Renderer {
   timeIndicator;

src/socket.js

@@ -1,4 +1,4 @@
-import { BrowserSocketFactory, Client } from "./blitz";
+import { BrowserSocketFactory, Client } from "./blitz.js";
 
 export class DataStream extends EventTarget {
   constructor() {