chore: update app version to 1.9.0, change Flutter build mode to debug, and add changes field to app info model for update dialogs

lib/data/model/app_info_model.g.dart

@@ -27,6 +27,9 @@ _Info _$InfoFromJson(Map<String, dynamic> json) => _Info(
   minVersion: json['minVersion'] as String?,
   module: json['module'] as String?,
   required: json['required'] as bool?,
+  changes: (json['changes'] as List<dynamic>?)
+      ?.map((e) => e as String)
+      .toList(),
 );
 
 Map<String, dynamic> _$InfoToJson(_Info instance) => <String, dynamic>{
@@ -34,4 +37,5 @@ Map<String, dynamic> _$InfoToJson(_Info instance) => <String, dynamic>{
   'minVersion': instance.minVersion,
   'module': instance.module,
   'required': instance.required,
+  'changes': instance.changes,
 };