Applying base64 to env vars and fixing log issue

[jonathanpmoraes]

This pull request includes several changes to web/setupProxy.js, web/src/auth/AuthContext.tsx, and web/src/components/ga4.tsx to improve code consistency and add environment-specific configurations.

Code consistency improvements:

• web/setupProxy.js: Removed all semicolons to maintain a consistent code style across the file. [1] [2] [3]

Environment-specific configurations:

• web/src/auth/AuthContext.tsx: Added a function to decode base64 strings and set the oktaClientId based on whether the environment is staging or production.
• web/src/components/ga4.tsx: Added a function to decode base64 strings and set the Google Analytics ID (gaId) based on whether the environment is staging or production.

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• New and existing unit tests pass locally with my changes