Docker: Build and publishing

[brunomenezes]

📄 Context

Prepare to build and publish the new explorer for deployment to Docker Hub and ghcr.
Also, change the current name from dave to explorer internally.

✔️ Solution

Update the current dockerfile to target the new explorer.

📈 Subtasks

• change internal name from dave to explorer.
• update dockerfile to target the new explorer.
• Create environment config to be part of default builds.
• update GitHub actions [chromatic action]
• update Vercel settings.

🎯 Definition of Done

• Build default image with defaults targeting local-development (cartesi-cli expected endpoints).
• Can build a devel image from the local repository for easy development testing.
• Running a built image with different env var configs works as expected.
• Vercel build and deploy the renamed application.
• chromatic action publish the storybook correctly.