Update environment variable handling for local and CI/CD

[sirajvind]

This pull request updates the handling of environment variables to support both local development and CI/CD environments. The changes include:

• Added a helper function \loadEnv\ to load environment variables from .env, \secrets.json, or GitHub Secrets.
• Updated the \swg-login-form.spec.js\ test file to use the \loadEnv\ function.
• Updated the GitHub Actions workflow to parse the \SECRETS_JSON\ secret and set environment variables.

These changes ensure that sensitive information is handled securely and efficiently across different environments.

[sirajvind]

Test- Passed