feat: cross-env secret crud

[rohan-chaturvedi]

🔍 Overview

Secrets can currently only be updated within specific environments individually. This makes it cumbersome to manage secret keys and values across multiple environments quickly.

💡 Proposed Changes

This PR adds the ability to easily CRUD key-value pairs across environments. This is the first phase in a set of updates to improve the UX and DX for managing secrets across environments more easily

🖼️ Screenshots or Demo

Screencast.From.2025-01-11.20-40-33.mp4

📝 Release Notes

Updated the secrets overview table in App home to add secret management tools

➕ Additional Context

Features such as one-click referencing, one-click key / value inheritence etc are coming in subsequent updates

✨ How to Test the Changes Locally

Try all combinations of CRUD operations and verify that the client state updates are correct and displayed intuitively. Verify that all changes are correctly synced to the server.

💚 Did You...

• Ensure linting passes (code style checks)?
  - [ ] Update dependencies and lockfiles (if required)
• Regenerate graphql schema and types (if required)
• Verify the app builds locally?
• Manually test the changes on different browsers/devices?