upload status in console

[heyjay44]

for the nft.storage and web3.storage web apps, we want users to see that their data is being actively uploaded. Right now, they only get a message when it is complete. For larger files, that confirmation might take a bit longer. We want to let users know using a "spinning wheel" or a message, that upload is in progress. At this point, a true to form progress bar is out of scope.

example: throw a spinner in there

• [x] https://github.com/web3-storage/w3ui/pull/499