[Bug] Environment variables exceed Vercel limit

**Describe the bug**
The combined size of environment variables for Portal v1 and portal v2 exceed the 4KB limit imposed by Vercel for a single project.
[Vercel environment variable limits](https://vercel.com/support/articles/how-do-i-workaround-vercel-s-4-kb-environment-variables-limit)

**To Reproduce**
Steps to reproduce the behavior:
1. Redeploy preview branch
2. See error

**Expected behavior**
Vercel deploys preview branches on commit.

**Additional context**
Possible solutions:
- Move the next branch to a new repo and set up another Vercel project. This also fixes the issue of Build & Development setting not being compatible with CRA and NextJS
- [Vercel 4KB workaround](https://vercel.com/support/articles/how-do-i-workaround-vercel-s-4-kb-environment-variables-limit) Since we use Doppler, we would need to use [doppler webhooks](https://docs.doppler.com/docs/enclave-webhooks) and some automation to encrypt secrets and commit to repo? Seems unnecessary and complicated compared to the other option with some other consequences.