## TL;DR
refactor workspace embedding:
* using computed data
* optimizing data fetching timing(constructor -> component mounted)
* set loading initial values to `true`
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Improved loading indicators and state handling for embedding settings, including a more accurate loading state for the embedding toggle.
- **Bug Fixes**
- The embedding toggle now safely handles unknown or loading states and is disabled while loading, preventing unintended interactions.
- **Refactor**
- Simplified pagination logic and optimized initial data fetching for a smoother user experience.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->