fix(gatsbu-source-contentful): apply useNameForId when creating the graphql schema (#28649)

Author: kaneshin

packages/gatsby-source-contentful/src/gatsby-node.js

@@ -346,7 +346,15 @@ exports.sourceNodes = async (
 
   const gqlTypes = contentTypeItems.map(contentTypeItem =>
     schema.buildObjectType({
-      name: _.upperFirst(_.camelCase(`Contentful ${contentTypeItem.name}`)),
+      name: _.upperFirst(
+        _.camelCase(
+          `Contentful ${
+            pluginConfig.get(`useNameForId`)
+              ? contentTypeItem.name
+              : contentTypeItem.sys.id
+          }`
+        )
+      ),
       fields: {
         contentful_id: { type: `String!` },
         id: { type: `ID!` },