🐛 BUG: Content is deleted when fixing self-closing br tag

[ac-lebrun]

Describe the Bug

Hi,
My HTML code contains an incorrect br tag that is used with children <br>some content</br> (br was conflated with p). It is automatically turned into a self-closed <br /> when I save my .astro file, great, but this also removes the content which is lost.

Steps to Reproduce

1. npm init astro
2. Create a page containing <br>some content</br>
3. Save file in VS code, using Astro plugin
4. The br tag will become self-closed but "some content" will be lost

[Princesseuh]

For me this seems to just move the content after the tag, like it'd do in browsers:

<br>some content</br>

becomes

<br />some content

This is expected behaviour at this time