fix(packages): Add label for private and internal package and fix composor package source permission check (#37610) (#37643)

Backport #37610 by @lunny

- Add permission checks for Composer package source links

- Add private/internal visibility labels for packages, similar to
repository visibility labels

<img width="969" height="571" alt="image"
src="https://github.com/user-attachments/assets/8a8ec3a0-bfbd-4dd6-b45b-58eda5db1a2d"
/>

- Add a link to change package visibility

<img width="1309" height="208" alt="image"
src="https://github.com/user-attachments/assets/3fa82b23-4c63-4a5e-b3f0-d37a103231ee"
/>

- Update link package descriptions

<img width="1308" height="265" alt="image"
src="https://github.com/user-attachments/assets/2c80b50e-5ffe-4d96-aedd-aa15964c4e05"
/>

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Nicolas <bircni@icloud.com>
Co-authored-by: silverwind <me@silverwind.io>

templates/package/shared/versionlist.tmpl

@@ -1,4 +1,10 @@
-<p><a href="{{.PackageDescriptor.PackageWebLink}}">{{.PackageDescriptor.Package.Name}}</a> / <strong>{{ctx.Locale.Tr "packages.versions"}}</strong></p>
+<p>
+	<a href="{{.PackageDescriptor.PackageWebLink}}">{{.PackageDescriptor.Package.Name}}</a>
+	<span class="label-list">
+		{{template "package/shared/visibility_badge" dict "Package" .PackageDescriptor.Package "Owner" .PackageDescriptor.Owner}}
+	</span>
+	/ <strong>{{ctx.Locale.Tr "packages.versions"}}</strong>
+</p>
 <form class="ui form ignore-dirty">
 	<div class="ui small fluid action input">
 		{{template "shared/search/input" dict "Value" .Query "Placeholder" (ctx.Locale.Tr "search.package_kind")}}