Added the package page data race safety metadata item.

Author: daveverwer

FrontEnd/styles/package.scss

@@ -136,6 +136,10 @@
                 background-image: var(--image-macros);
             }
 
+            li.data-race-safe {
+                background-image: var(--image-checkered-flag);
+            }
+
             li.keywords {
                 grid-column-start: span 2;
                 background-image: var(--image-tags);

Sources/App/Views/PackageController/GetRoute.Model+ext.swift

@@ -309,6 +309,13 @@ extension API.PackageController.GetRoute.Model {
         )
     }
 
+    func dataRaceSafeListItem() -> Node<HTML.ListContext> {
+        return .li(
+            .class("data-race-safe"),
+            .text("Safe from data races")
+        )
+    }
+
     func keywordsListItem() -> Node<HTML.ListContext> {
         if let keywords = keywords {
             return .li(

Sources/App/Views/PackageController/PackageShow+View.swift

@@ -172,6 +172,7 @@ extension PackageShow {
                     model.productTypeListItem(.executable),
                     model.productTypeListItem(.plugin),
                     model.targetTypeListItem(.macro),
+                    model.dataRaceSafeListItem(),
                     model.keywordsListItem()
                 )
             )