Improve experience if it takes a while to download a "remote" component on spin up

[mikkelhegn]

I was on an airplane, and I decided to run a Spin app using the fileserver, with a reference to Github in spin.toml. Now that took a while, as the bits of the fileserver was chasing the airplane across the Atlantic (I'm not sure they ever caught up). In those weird cases, it would be great if at spin up a note is fed back to the use, that Spin is currently busy downloading that remote component, so that it's easy to understand what we'er waiting for.

[UtkarshUmre]

Hello @itowlson, I'm new here and interested in contributing! Could you please assign me this issue? It looks like a great first task for me

[itowlson]

@UtkarshUmre Done - thanks for your enthusiasm!

[Archisman-Mridha]

Hi @itowlson, I am new to open-sourcing and this is my first time contributing to Fermyon Spin. I have opened a PR which solves this issue. Please let me know if I need to make any further changes or it's ready to be merged 😊.

[itowlson]

@Archisman-Mridha Thanks! One thing to watch out for is if someone is already assigned - this can save folks from tripping over each others' toes - it might be worth checking in with @UtkarshUmre whether they are already working on this!