Allow updating bio fields via PUT /api/v1/accounts/update_credentials (#7288)

Add raw bio fields to the source attribute on GET /api/v1/accounts/verify_credentials

app/serializers/rest/credential_account_serializer.rb

@@ -5,10 +5,12 @@ class REST::CredentialAccountSerializer < REST::AccountSerializer
 
   def source
     user = object.user
+
     {
       privacy: user.setting_default_privacy,
       sensitive: user.setting_default_sensitive,
       note: object.note,
+      fields: object.fields.map(&:to_h),
     }
   end
 end