Promises used to load sidecar and peaks files messing everything up

[agrathwohl]

The sidecar JSON and the peaks files both are good functional solutions, but they also require us to utilize fetch(), leading to the introduction of Promises. We need to come up with a better, synchronous solution.

[agrathwohl]

Fixed in commit d85fe181170853236aaa3687987b8a10078c577f