Dropcel v0.8.1

When something is waiting instead of deploying, I want the app to say so.

• A held project now says so on its card, not just in the table.
• A change held through an outage re-checks git before it deploys.
• Switching accounts with "Start Fresh" moves every project at once, or none.
• Greyed-out items in the project menu now explain why.
• "Delete on Vercel…" is no longer offered for a project that has none.
• A deployment reads "Live" everywhere; the table used to say "Ready".
• The app window carries its own icon.