fix: correctly handle parallel downloading

[qkdreyer]

No description provided.

[qkdreyer]

const promise = delay => new Promise(resolve => setTimeout(() => console.log(delay) || resolve(delay), delay))
const chunkify = (arr, n) => arr.reduce((acc, cur, i) => {
  const index = Math.floor(i / n)
  acc[index] = [...(acc[index] || []), cur]
  return acc;
}, [])

for (let chunk of chunkify([promise(3000), promise(2500), promise(1500)], 2)) await Promise.all(chunk)

1500
2500
3000

for (let chunk of chunkify([() => promise(3000), () => promise(2500), () => promise(1500)], 2)) await Promise.all(chunk.map(fn => fn()))

2500
3000
1500

[NomadsComputerllc]

reviewing changes