Cast language RTL value as boolean

index.js

@@ -44,7 +44,7 @@ const typeDefs = gql`
     code: LanguageCode
     name: String
     native: String
-    rtl: Int
+    rtl: Boolean
   }
 
   type Query {
@@ -96,6 +96,11 @@ const resolvers = {
         }));
     }
   },
+  Language: {
+    rtl(language) {
+      return Boolean(language.rtl);
+    }
+  },
   Query: {
     continent(parent, {code}) {
       return {