feat: animate layout transitions

[rohan-chaturvedi]

🔍 Overview

Animates layout shifts with subtle transitions to give better visual feedback for:

• Environment card re-ordering
• Adding / Removing Secrets
• Sorting Secrets

All animations use framer motion

🖼️ Screenshots or Demo

Screencast.From.2025-02-26.19-10-58.mp4

📝 Release Notes

Added animated layout transitions to envs and secrets for better visual feedback

🎯 Reviewer Focus

• Check for animation performance degradation
• Make sure animations work well on all available browsers
• Check for any unintended animations or wonky behavior

💚 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?