(Chore) Migrate wallet deployments to vercel

[sirpy]

we get it for free as an open source project (we'll have to add to the splash screen "powered by vercel"

• [ ] use doppler for env variables (dev_secrets,stg_secrets, prd_secrets)
• [ ] set facebook,auth0,google to work with vercel domains
• [ ] set cloudflare to point to vercel

[johnsmith-gooddollar]

@sirpy @patpedrosa Does it still relevant or could be closed / moved to the IceBox ?

[sirpy]

yes this is still relevant, down the line we dont want to pay for hosting the wallet and we have free service from vercel