Applying Standard JS styling & some simplification

[JustMaier]

Two other noteworthy changes:

• connectToCompanions: I replaced the forEach async there with a Promise.all map async so that we could await the completion of the function.
• queryCatalog: I added the queryFn and used query instead of get('') so that the function actually did what was described.

[RichardLitt]

Thanks, @JustMaier.