feat(learn): lazy load chai in frame-runner

client/src/client/frame-runner.js

@@ -1,4 +1,3 @@
-import chai from 'chai';
 import '@babel/polyfill';
 import jQuery from 'jquery';
 
@@ -38,6 +37,8 @@ async function initTestFrame() {
     return o;
   };
 
+  // eslint-disable-next-line no-inline-comments
+  const { default: chai } = await import(/* webpackChunkName: "chai" */ 'chai');
   const assert = chai.assert;
   /* eslint-enable no-unused-vars */