[enhancement] Compute minting setup parameters in parallel

[steveluscher]

Description

When the user clicks the mint button, we do four small async operations to set up the transaction. Despite the fact that none of these transactions depend on one another, we've written them to be executed in series.

const foo = await getFoo();
const bar = await getBar();
const baz = await getBaz();
const bat = await getBat();

Instead, what we can do is to generate all of the promises at once, let the network IO start, and wait on the results as a group.

const [foo, bar, baz, bat] = await Promise.all([
  getFoo(),
  getBar(),
  getBaz(),
  getBat(),
]);

This isn't going to result in a huge speedup, since most of the async work here is CPU bound and not network bound, but it's a good habit to get into none the less.

Type of change

• Enhancement

How Has This Been Tested?

I loaded up the site locally and minted several tokens on devnet.