docs(wallet): fix web-extension build

web-extension depends on webpack 4 and it fails because of optional chaining in calldata.
This feature has 93.6 browser support.
https://cli.vuejs.org/config/#transpiledependencies

Author: davidyuk

examples/browser/wallet-web-extension/vue.config.js

@@ -27,4 +27,5 @@ module.exports = {
     const sdkPath = path.join(__dirname, '..', '..', '..', 'es');
     config.module.rule('mjs').include.add(sdkPath);
   },
+  transpileDependencies: ['@aeternity/aepp-calldata'],
 };