[fix] html in attr not escaped

[Scrum]

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[anikethsaha]

Lgtm

One optional thought

[sy-records]

#1404 will fix this problem

[sy-records]

Thank you for your contribution.

But there are some problems:

1. You don't need to modify package-lock.json
2. The problem with the A tag has been fixed. fix: the sidebar links to another site. #1336
3. The title shouldn't have any tags, so it will be removed at fix: title error when sidebar link exists with html tag #1404, not escaped.
   & " 'neither need be escaped.

[Scrum]

Thank you for your contribution.

But there are some problems:

1. You don't need to modify `package-lock.json`

2. The problem with the `A` tag has been fixed. #1336

3. The `title` shouldn't have any tags, so it will be removed at #1404, not escaped.
   `& " '`neither need be escaped.

force update PR

[sy-records]

Actually, I think you can close this PR :)