List the searchable playground in the catalog

Author: colemancda

Demo/App.swiftpm/Sources/Catalog.swift

@@ -50,6 +50,7 @@ struct CatalogEntry: Identifiable {
         CatalogEntry(id: "animation", title: "Animation", screen: AnyCatalogScreen(AnimationPlayground())),
         CatalogEntry(id: "interaction", title: "Interaction", screen: AnyCatalogScreen(InteractionPlayground())),
         CatalogEntry(id: "navigation", title: "Navigation", screen: AnyCatalogScreen(NavigationPlayground())),
+        CatalogEntry(id: "searchable", title: "Searchable", screen: AnyCatalogScreen(SearchablePlayground())),
         CatalogEntry(id: "tab", title: "TabView", screen: AnyCatalogScreen(TabViewPlayground())),
         CatalogEntry(id: "sheet", title: "Sheet", screen: AnyCatalogScreen(SheetPlayground())),
         CatalogEntry(id: "alert", title: "Alert", screen: AnyCatalogScreen(AlertPlayground())),