chore: some code review changes

hooks/useBlogData.ts

@@ -26,10 +26,22 @@ export const useBlogData = () => {
     [pagination]
   );
 
-  const currentCategory = useMemo(
-    () => asPath.split('/')[3] || new Date().getFullYear().toString(),
-    [asPath]
-  );
+  const currentCategory = useMemo(() => {
+    // We split the pathname to retrieve the blog category from it
+    // since the URL is usually /{languageCode}/blog/{category}
+    // the third path piece is usually the category name
+    const [, , pathname, category] = asPath.split('/');
+
+    if (pathname === 'blog' && category && category.length) {
+      return category;
+    }
+
+    // if either the pathname does not match to a blog page
+    // which should not happen (as this hook should only be used in blog pages)
+    // or if there is no category in the URL we return the current year as category name
+    // which is always the default category (for example, the blog index)
+    return new Date().getFullYear().toString();
+  }, [asPath]);
 
   return {
     posts,

next.locales.mjs

@@ -45,8 +45,8 @@ const getCurrentTranslations = locale => ({
 });
 
 export {
-  defaultLocale,
   availableLocales,
+  defaultLocale,
   getCurrentLocale,
   getCurrentTranslations,
 };