fix: cleanup graphql typings and comments

Author: moonmeister

examples/astro/previews/example-app/src/pages/wp-templates/home.astro

@@ -1,16 +1,13 @@
 ---
 import Layout from "../../layouts/Layout.astro";
 import { authHeaders, client, gql } from "../../lib/client";
+
 /**
  * This is a template for the WordPress template hierarchy.
  * It will be used to render the WordPress templates.
  * It should never be used directly.
  * This check confirms that the template is being used in the correct context.
  * If the template is being used directly, it will redirect to the 404 page.
- *
- * Once https://github.com/withastro/astro/issues/13555 is fixed, this check can be changed to:
- *  if (Astro.url.pathname === Astro.originPathname)
- *
  */
 if (Astro.url.pathname === Astro.originPathname) {
   return Astro.rewrite("/404");

examples/astro/previews/example-app/src/pages/wp-templates/index.astro

@@ -5,10 +5,6 @@
  * It should never be used directly.
  * This check confirms that the template is being used in the correct context.
  * If the template is being used directly, it will redirect to the 404 page.
- *
- * Once https://github.com/withastro/astro/issues/13555 is fixed, this check can be changed to:
- *  if (Astro.url.pathname === Astro.originPathname)
- *
  */
 if (Astro.url.pathname === Astro.originPathname) {
   return Astro.rewrite("/404");
@@ -21,7 +17,7 @@ const databaseId = Astro.locals.templateData?.databaseId;
 const isPreview = Astro.locals.isPreview;
 
 const query = gql`
-  query indexTemplateNodeQuery($id: ID!, $isPreview: Boolean!) {
+  query indexTemplateNodeQuery($id: ID!, $isPreview: Boolean = false) {
     node: contentNode(id: $id, idType: DATABASE_ID, asPreview: $isPreview) {
       __typename
       uri

examples/astro/previews/example-app/src/pages/wp-templates/single.astro

@@ -17,7 +17,10 @@ const databaseId = Astro.locals.templateData?.databaseId;
 
 const { data, error } = await client.query(
   gql`
-    query singleTemplatePageQuery($databaseId: ID!, $isPreview: Boolean!) {
+    query singleTemplatePageQuery(
+      $databaseId: ID!
+      $isPreview: Boolean = false
+    ) {
       post: contentNode(
         id: $databaseId
         idType: DATABASE_ID