Use promise-based http requests instead of callback-based

We are currently using https module to make http requests, which takes in a callback. When you have to make multiple requests, this makes the code very hard to follow. We should use a promise-based approach instead. Axios is a popular library for doing this.

Start by locating the dashboard's uses of the Node.js https module and trace the call sites that make multiple requests. Replace the callback-based request flow with a promise-based approach, then verify that the existing HTTP request behavior is preserved.

Written by the indexing model from the issue text.