refactor(pages): refine Article pages

* use rehype to update code blocks class names
* fix widget heading level (after a level 1 it should always be a level
2 and not 3)
* replace Spinner with LoadingPage and LoadingPageComments components to
keep layout coherent
* refactor useArticle and useComments hooks
* fix URLs in JSON LD schema
* add Cypress tests

1 files changed, 28 insertions, 0 deletions

diff --git a/src/components/templates/page/loading-page.tsx b/src/components/templates/page/loading-page.tsx
new file mode 100644
index 0000000..18ceed0
--- /dev/null
+++ b/src/components/templates/page/loading-page.tsx
@@ -0,0 +1,28 @@
+import { forwardRef, type ForwardRefRenderFunction } from 'react';
+import { useIntl } from 'react-intl';
+import { Spinner } from '../../atoms';
+import { Page, type PageProps } from './page';
+import { PageBody } from './page-body';
+import styles from './page.module.scss';
+
+const LoadingPageWithRef: ForwardRefRenderFunction<
+  HTMLDivElement,
+  Omit<PageProps, 'children'>
+> = (props, ref) => {
+  const intl = useIntl();
+  const loadingMsg = intl.formatMessage({
+    defaultMessage: 'The requested page is loading...',
+    description: 'LoadingPage: loading message',
+    id: '0UzObH',
+  });
+
+  return (
+    <Page {...props} ref={ref}>
+      <PageBody>
+        <Spinner className={styles.spinner}>{loadingMsg}</Spinner>
+      </PageBody>
+    </Page>
+  );
+};
+
+export const LoadingPage = forwardRef(LoadingPageWithRef);