fix(Markdown): switch route after markdown trigger javascript error

[ArgoZhang]

switch route after markdown trigger javascript error

Summary of the changes (Less than 80 chars)

简单描述你更改了什么, 不超过80个字符；如果有关联 Issue 请在下方填写相关编号

Description

fixes #5045

Regression?

• Yes
• No

[If yes, specify the version the behavior has regressed from]

[是否影响老版本]

Risk

• High
• Medium
• Low

[Justify the selection above]

Verification

• Manual (required)
• Automated

Packaging changes reviewed?

• Yes
• No
• N/A

☑️ Self Check before Merge

⚠️ Please check all items below before review. ⚠️

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• Merge the latest code from the main branch

Summary by Sourcery

Bug Fixes:

• Fixed a JavaScript error that occurred when switching routes in the Markdown component.

[sourcery-ai]

🧙 Sourcery has finished reviewing your pull request!

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[sourcery-ai]

Hey @ArgoZhang - I've reviewed your changes - here's some feedback:

Overall Comments:

• Please provide a detailed description of the JavaScript error and how your changes fix it. This helps with future maintenance and understanding of the change.
• Add specific verification steps to demonstrate how to test that the JavaScript error has been resolved.
• The PR template checklist items are all unchecked. Please review and complete the self-check section before requesting review.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (89283d2) to head (8961abc).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #5046   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          631       631           
  Lines        27964     27964           
  Branches      4008      4008           
=========================================
  Hits         27964     27964           

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