feat(subgraph): optimize subgraph schema

[0xmad]

Description

Optimize subgraph schema

Additional Notes

N/A

Related issue(s)

N/A

Confirmation

• [x] I have read and understand MACI's contributor guidelines and code of conduct.
• [x] I have read and understand MACI's GitHub processes.
• [x] I have read and understand MACI's testing guide.

[vercel[bot]]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Updated (UTC)
maci-website	✅ Ready (Inspect)	Visit Preview	Jun 13, 2024 5:32pm