[Feature]: built-in editor should use modern monaco

[HsiangNianian]

Prerequisites

• I understand that Issues are for feedback and problem-solving, not for complaints. I will provide as much information as possible.
• I have not read carefully and just clicked through everything, believing this won't affect issue handling.
• I have searched existing issues to ensure this is not a duplicate
• I have checked the roadmap in the README
• This feature would benefit multiple users, not just myself

Feature Type

UI/UX Enhancement

Problem Statement

use modern monaco instead of built-in

Proposed Solution

use modern monaco instead of built-in

Alternative Solutions

No response

Examples and References

No response

Priority

Medium (nice to have)

Contribution

• I would be willing to implement this feature
• I would be willing to help test this feature
• I can provide design mockups or specifications

Additional Context

No response