Display Mermaid error log and reduce shake

[TCOTC]

Is there an existing issue for this?

• I have searched the existing issues

Can the issue be reproduced with the default theme (daylight/midnight)?

• I was able to reproduce the issue with the default theme

Could the issue be due to extensions?

• I've ruled out the possibility that the extension is causing the problem.

Describe the problem

Mermaid 在编辑后会闪烁一下

Expected result

直接显示编辑后的图表

Screenshot or screen recording presentation

Version environment

- Version: 2.12.8
- Operating System: Windows10

Log file

无

More information

我不确定这个是 Mermaid 的问题还是思源的问题