Show always repo count in header (#26842)

A few pages don't load the repo count of an user/org, so it is not shown
in the header. This happens mostly on org pages, but the package
settings applies to the user page as well.

Before:
![Screenshot 2023-08-31 at 12-45-36 Gitea Git with a cup of
tea](https://github.com/go-gitea/gitea/assets/15185051/14a59998-2cf9-4771-82f4-5d1d6fcb31f4)

After:

![grafik](https://github.com/go-gitea/gitea/assets/15185051/ff055aa0-7cde-49be-9522-437bf970be1d)


Seen on #26826
Regression of #25928

routers/web/user/package.go

@@ -390,6 +390,12 @@ func PackageSettings(ctx *context.Context) {
 	ctx.Data["Repos"] = repos
 	ctx.Data["CanWritePackages"] = ctx.Package.AccessMode >= perm.AccessModeWrite || ctx.IsUserSiteAdmin()
 
+	err := shared_user.LoadHeaderCount(ctx)
+	if err != nil {
+		ctx.ServerError("LoadHeaderCount", err)
+		return
+	}
+
 	ctx.HTML(http.StatusOK, tplPackagesSettings)
 }