Transpile logical assignment operators with babel

(cherry picked from commit 3cf4d2907e32e81050f35cda042dcc2b4641d40d)

frontend/babel.config.js

@@ -2,6 +2,8 @@ const loose = true;
 
 module.exports = {
   plugins: [
+    '@babel/plugin-transform-logical-assignment-operators',
+
     // Stage 1
     '@babel/plugin-proposal-export-default-from',
     ['@babel/plugin-transform-optional-chaining', { loose }],