Slots remove whitespace where it shouldn't when <style> is used

[Lectem]

Astro Info

Astro                    v5.2.5
Node                     v22.13.1
System                   Windows (x64)
Package Manager          npm
Output                   static
Adapter                  none
Integrations             @astrojs/mdx
                         @astrojs/sitemap

If this issue only occurs in one browser, which browser is a problem?

No response

Describe the Bug

Whitespaces are being stripped between multiple <span> elements when using Layout components (<slot>), if and only if a <style> is present.
This leads to inconsistent rendering between using slots and not using slots.

Weirdly, this is something that was discussed in withastro/astro#6893, and it was mentioned that astro not removing whitespaces was a feature !

What's the expected result?

Astro should have the same rendering results whether <slot/>/<style> are being used or not.

Link to Minimal Reproducible Example

https://stackblitz.com/edit/github-wwx73rkk?file=src%2Fpages%2FindexWithLayout.astro

Participation

• I am willing to submit a pull request for this issue.