todo alert for next version

lib/models/home_page_content/banner.dart

@@ -6,7 +6,8 @@ class MainPageBannerType {
 
   factory MainPageBannerType.fromJson(Map<String, dynamic> json) {
     return MainPageBannerType(
-      image: json['image'],
+      // fix if it null
+      image: json['image'] ?? '',
       link: json['link'],
     );
   }