Ensure that code generated in development is "the same" as code used in development

[stalniy]

Why

Currently it's possible to make mistake during development and our tools do not notice it because it generates the code which actually doesn't cause this issue (potentially older version of ES).

This is what happened during implementation of storage stats chart, everything worked locally in dev env but once it was deployed, /network-capacity endpoint failed with 500 error and then it was fixed -> #683

What

Either get rid of webpack and use ts-node + tsc or ensure that webpack generates the same code for both prod and development envs