Prevent Git from normalizing line endings in *.min.css files

[Copilot]

Local VS deployment runs CSS bundling that strips CRLF from minified CSS files (e.g. bootstrap.min.css), causing spurious diffs on Windows with core.autocrlf=true.

• Add *.min.css -text to .gitattributes directly after the *.css text=auto rule — later rules win in .gitattributes, so this correctly overrides line-ending normalization for minified CSS only

Original prompt

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This section details on the original issue you should resolve

<issue_title>Deploying NuGetGallery locally changes bootstrap.min.css line endings from CRLF to LF</issue_title>
<issue_description>Deploying the NuGetGallery locally from VS results in a bootstrap.min.css file modification even if the file hasn't been changed. This is somewhat annoying as I have to constantly work around the modified css file when staging changes.

PS C:\git\NuGetGallery> git config core.autocrlf
true

On checkout we have CRLF line endings in the working directory:

PS C:\git\NuGetGallery> git ls-files --eol
...
i/lf    w/crlf  attr/text=auto          src/NuGetGallery/Content/gallery/css/bootstrap.min.css
...

After deploying the line endings are now LF:

PS C:\git\NuGetGallery> git ls-files --eol
...
i/lf    w/lf    attr/text=auto          src/NuGetGallery/Content/gallery/css/bootstrap.min.css
...

Examining the diff:

PS C:\git\NuGetGallery> git diff HEAD --no-ext-diff --patch-with-raw -z --no-color -- .\src\NuGetGallery\Content\gallery\css\bootstrap.min.css
warning: in the working copy of 'src/NuGetGallery/Content/gallery/css/bootstrap.min.css', LF will be replaced by CRLF the next time Git touches it

I suspect the reason the line endings are changing has something to do with style rendering that bundles the minified css files:

NuGetGallery/src/NuGetGallery/Views/Shared/Gallery/Layout.cshtml

Lines 31 to 32 in 314756d

	@Styles.Render("~/Content/gallery/css/site.min.css")
	@Styles.Render("~/Content/gallery/css/bootstrap.min.css")

One solution that I think would work is to prevent git from modifying line endings for the bootstrap.min.cs file by adding this line to .gitattributes:

*.min.css -text
```</issue_description>

<agent_instructions> Implement the propose solution or come up with a better solution
</agent_instructions>

## Comments on the Issue (you are @copilot in this section)

<comments>
</comments>

• Fixes Deploying NuGetGallery locally changes bootstrap.min.css line endings from CRLF to LF #10472

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