build: setup graphql_uri & continuous deployment

[handripangestiaji]

Changelog:

• Setup graphql_uri in .env for staging deployment purposes
• Add continuous deployment pipeline

[vercel[bot]]

@handripangestiaji is attempting to deploy a commit to the dreamcube Team on Vercel.

To accomplish this, @handripangestiaji needs to request access to the Team.

Afterwards, an owner of the Team is required to accept their membership request.

If you're already a member of the respective Vercel Team, make sure that your Personal Vercel Account is connected to your GitHub account.