Enhance modal editor and improve empty state styling (#303180)

* feat: enhance modal editor and empty state styling, add minWidth configuration

Co-authored-by: Copilot <[email protected]>

* style: update spacing and visibility for group headers in AI customization management

Co-authored-by: Copilot <[email protected]>

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <[email protected]>

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <[email protected]>

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Co-authored-by: mrleemurray <[email protected]>
Co-authored-by: Copilot <[email protected]>
Co-authored-by: Copilot Autofix powered by AI <[email protected]>