[REF] move event_bus into utils, readd 2 functions

src/index.ts

@@ -11,6 +11,7 @@ import {
   toggler,
 } from "./blockdom";
 import { mainEventHandler } from "./component/handler";
+import { EventBus, whenReady, loadFile } from "./utils";
 
 config.shouldNormalizeDom = false;
 config.mainEventHandler = mainEventHandler;
@@ -57,7 +58,7 @@ export { Memo } from "./misc/memo";
 export { css, xml } from "./tags";
 export { useState } from "./reactivity";
 export { useRef } from "./refs";
-export { EventBus } from "./event_bus";
+export const utils = { EventBus, whenReady, loadFile };
 
 export {
   onWillStart,