feat: SPACE (creation) WIZARDS 🧙

[travis]

First iteration on a space creation wizard for the console:

This works, but I'm not totally happy with it - imho we could merge as-is but would love to iterate a bit more either before or after we do that.

Outstanding issues:

1. There is currently no way to recover a space from a recovery phrase in the console. I think there's a way to do this in the CLI so we could potentially wait on this.
2. "I'd prefer to back it up on your service" on the recovery phrase page doesn't do anything - imho it should run through the billing and recovery delegation automatically but I'm not convinced these are the right two options anyway.
3. "Set up billing" seems weird, but that screen could potentially be a plan picker so it does feel like it needs to be there for now. In general I think the consensus in demos today was that we should move billing to the uploads page and just stop people from uploading until they have set up billing. This is complicated by the fact that we cannot set up space recovery until after billing has been set up. I think the right way to resolve this is to:
   a) Locally save the space (await ownedSpace.save()) generate and locally save the recovery UCAN (something like agent.addProof(await ownedSpace.createRecovery(account.did()))) during space creation
   b) When a user tries to upload, force them to go through the billing flow - plan selection if necessary, and then provisioning the space. Once that's done, offer to save the recovery delegation to the service.
4. I'd like to take a pass at copy here with anyone interested - maybe could find some 8 or 9am PT time to do this before or after the holiday break

I'm inclined to fix all of these before merging, but that will probably end up being after the holiday break! Happy to find some shorter-term fixes for any issues and get this out if anyone would like it to ship urgently.

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