add mutations to questions and reviews

app/graphql/inputs/question_alternative_input.rb

@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+module Inputs
+  class QuestionAlternativeInput < Types::BaseInputObject
+    argument :correct, Boolean, required: false
+    argument :text, String, required: false
+  end
+end