Heading doesn't render when use right after tag <br>

[Waris Shams]

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Before you submit an issue, please complete the report with all the relevant details for your bug and go through every item in the checklist.

Describe the bug
A clear and concise description of what the bug is.

Checklist

• I can reproduce this issue with a vanilla SwiftUI project.
• I can reproduce this issue using the main branch of this package.
• This bug hasn't been addressed in an existing GitHub issue.

Steps to reproduce
Simply add these lines in your TextStylesView line number 38 and see the result.

    using the HTML `<br>`
    <br>#### See If This  Header Works      tag.

Expected behavior
It should show the Header (See If This Header Works).

Screenshots

Version information

• MarkdownUI: 2.3.0[master, ae799d0]
• OS: iOS 17.2, macOS 14.3
• Xcode: 15.2.0