[Feature] add a copy button to copy error messages.

[RSS1102]

Clear and concise description of the problem

Many IDEs now connect to AI code dialogue, and adding error copying allows users to quickly copy and send error messages to the AI ​​agent.

Suggested solution

add Copy icon.

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.