fix attachments disappearing upon edits

lib/models/requests/oauth/register_client.dart

@@ -16,9 +16,6 @@ abstract class OAuthRegisterClientRequest with _$OAuthRegisterClientRequest {
     IList<GrantType>? grantTypes,
     IList<Uri>? redirectUris,
     IList<ResponseType>? responseTypes,
-
-    @Default(AuthMethod.none)
-    @JsonKey(name: "token_endpoint_auth_method")
     AuthMethod? authMethod,
   }) = _OAuthRegisterClientRequest;
 

lib/widgets/mxc_image.dart

@@ -0,0 +1,11 @@
+import "package:flutter/material.dart";
+import "package:flutter_riverpod/flutter_riverpod.dart";
+
+class MxcImage extends ConsumerWidget {
+  const MxcImage({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    return const Placeholder();
+  }
+}