look into using babel plugin for optional chaining

[DustinKLo]

optional chaining isn't supported in webpack 4 (only v5+) without using babel's optional chaining plugin
https://stackoverflow.com/a/66422985

optional chaining makes code a little more concise: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining

example code:

res.job &&
res.job.job_info &&
res.job.job_info.metrics &&
res.job.job_info.metrics.products_staged;

// would turn into

res?.job?.job_info?.metrics?.products_staged