✨ Able to edit publication site config

lib/models/publication_site.dart

@@ -3,6 +3,28 @@ import 'package:freezed_annotation/freezed_annotation.dart';
 part 'publication_site.freezed.dart';
 part 'publication_site.g.dart';
 
+@freezed
+sealed class SnPublicationSiteNavItems with _$SnPublicationSiteNavItems {
+  const factory SnPublicationSiteNavItems({
+    required String label,
+    required String href,
+  }) = _SnPublicationSiteNavItems;
+
+  factory SnPublicationSiteNavItems.fromJson(Map<String, dynamic> json) =>
+      _$SnPublicationSiteNavItemsFromJson(json);
+}
+
+@freezed
+sealed class SnPublicationSiteConfig with _$SnPublicationSiteConfig {
+  const factory SnPublicationSiteConfig({
+    String? styleOverride,
+    List<SnPublicationSiteNavItems>? navItems,
+  }) = _SnPublicationSiteConfig;
+
+  factory SnPublicationSiteConfig.fromJson(Map<String, dynamic> json) =>
+      _$SnPublicationSiteConfigFromJson(json);
+}
+
 @freezed
 sealed class SnPublicationSite with _$SnPublicationSite {
   const factory SnPublicationSite({
@@ -16,6 +38,7 @@ sealed class SnPublicationSite with _$SnPublicationSite {
     required DateTime createdAt,
     required DateTime updatedAt,
     required List<SnPublicationPage> pages,
+    required SnPublicationSiteConfig config,
   }) = _SnPublicationSite;
 
   factory SnPublicationSite.fromJson(Map<String, dynamic> json) =>