Use correct field name. (#20675)

Co-authored-by: Lunny Xiao <[email protected]>

Author: KN4CK3R

templates/package/metadata/npm.tmpl

@@ -2,7 +2,7 @@
 	{{if .PackageDescriptor.Metadata.Author}}<div class="item" title="{{.locale.Tr "packages.details.author"}}">{{svg "octicon-person" 16 "mr-3"}} {{.PackageDescriptor.Metadata.Author}}</div>{{end}}
 	{{if .PackageDescriptor.Metadata.ProjectURL}}<div class="item">{{svg "octicon-link-external" 16 "mr-3"}} <a href="{{.PackageDescriptor.Metadata.ProjectURL}}" target="_blank" rel="noopener noreferrer me">{{.locale.Tr "packages.details.project_site"}}</a></div>{{end}}
 	{{if .PackageDescriptor.Metadata.License}}<div class="item" title="{{.locale.Tr "packages.details.license"}}">{{svg "octicon-law" 16 "mr-3"}} {{.PackageDescriptor.Metadata.License}}</div>{{end}}
-	{{range .PackageDescriptor.Properties}}
+	{{range .PackageDescriptor.VersionProperties}}
 		{{if eq .Name "npm.tag"}}<div class="item" title="{{$.locale.Tr "packages.npm.details.tag"}}">{{svg "octicon-versions" 16 "mr-3"}} {{.Value}}</div>{{end}}
 	{{end}}
 {{end}}