refactor(theme): dates should be formatted on the client-side instead of in nodejs code (#9868)

Co-authored-by: OzakIOne <OzakIOne@users.noreply.github.com>
Co-authored-by: sebastien <lorber.sebastien@gmail.com>

packages/docusaurus-plugin-content-blog/src/blogUtils.ts

@@ -164,25 +164,6 @@ export function parseBlogFileName(
   return {date: undefined, text, slug};
 }
 
-function formatBlogPostDate(
-  locale: string,
-  date: Date,
-  calendar: string,
-): string {
-  try {
-    return new Intl.DateTimeFormat(locale, {
-      day: 'numeric',
-      month: 'long',
-      year: 'numeric',
-      timeZone: 'UTC',
-      calendar,
-    }).format(date);
-  } catch (err) {
-    logger.error`Can't format blog post date "${String(date)}"`;
-    throw err;
-  }
-}
-
 async function parseBlogPostMarkdownFile({
   filePath,
   parseFrontMatter,
@@ -289,11 +270,6 @@ async function processBlogSourceFile(
   }
 
   const date = await getDate();
-  const formattedDate = formatBlogPostDate(
-    i18n.currentLocale,
-    date,
-    i18n.localeConfigs[i18n.currentLocale]!.calendar,
-  );
 
   const title = frontMatter.title ?? contentTitle ?? parsedBlogFileName.text;
   const description = frontMatter.description ?? excerpt ?? '';
@@ -348,7 +324,6 @@ async function processBlogSourceFile(
       title,
       description,
       date,
-      formattedDate,
       tags: normalizeFrontMatterTags(tagsBasePath, frontMatter.tags),
       readingTime: showReadingTime
         ? options.readingTime({