Fix missing error instance

Author: MrSkwiggs

Sources/Ignite/Framework/Environment/EnvironmentValues.swift

@@ -105,7 +105,8 @@ public struct EnvironmentValues {
         site: any Site,
         allContent: [Article],
         pageMetadata: PageMetadata,
-        pageContent: any LayoutContent
+        pageContent: any LayoutContent,
+        httpError: HTTPError = EmptyHTTPError()
     ) {
         self.decode = DecodeAction(sourceDirectory: sourceDirectory)
         self.articles = ArticleLoader(content: allContent)
@@ -117,6 +118,7 @@ public struct EnvironmentValues {
         self.builtInIconsEnabled = site.builtInIconsEnabled
         self.timeZone = site.timeZone
         self.page = pageMetadata
+        self.httpError = httpError
 
         self.site = SiteMetadata(
             name: site.name,

Sources/Ignite/Publishing/PublishingContext-Rendering.swift

@@ -138,8 +138,6 @@ extension PublishingContext {
         if site.errorPage is EmptyErrorPage { return }
 
         for error in [PageNotFoundError()] {
-            environment.httpError = error
-
             let metadata = PageMetadata(
                 title: site.errorPage.title,
                 description: site.errorPage.description,
@@ -151,7 +149,9 @@ extension PublishingContext {
                 site: site,
                 allContent: allContent,
                 pageMetadata: metadata,
-                pageContent: site.errorPage)
+                pageContent: site.errorPage,
+                httpError: error
+            )
 
             let outputString = withEnvironment(values) {
                 site.errorPage.layout.body.render()