fix: remove 0 from header of posts, remove test data

content/blog/the-complete-guide-to-regular-expressions-regex/index.es-es.md

@@ -1,14 +0,0 @@
----
-{
-  title: "Testing",
-  description: "A Regular Expression – or regex for short – is a syntax that allows you to match strings with specific patterns. Think of it as a suped-up text search",
-  published: "2022-04-17T22:12:03.284Z",
-  authors: ["crutchcorn"],
-  tags: ["regex", "computer science"],
-  attached: [],
-  license: "coderpad",
-  originalLink: "https://coderpad.io/blog/development/the-complete-guide-to-regular-expressions-regex/",
-}
----
-
-This is a test

content/blog/the-complete-guide-to-regular-expressions-regex/index.es.md

@@ -1,14 +0,0 @@
----
-{
-  title: "Testing",
-  description: "A Regular Expression – or regex for short – is a syntax that allows you to match strings with specific patterns. Think of it as a suped-up text search",
-  published: "2022-04-17T22:12:03.284Z",
-  authors: ["crutchcorn"],
-  tags: ["regex", "computer science"],
-  attached: [],
-  license: "coderpad",
-  originalLink: "https://coderpad.io/blog/development/the-complete-guide-to-regular-expressions-regex/",
-}
----
-
-This is a test

src/page-components/blog-post/translations-header/translations-header.tsx

@@ -19,7 +19,7 @@ export const TranslationsHeader = ({ post }: TranslationsHeaderProps) => {
             <Link passHref href={`/${langHref}posts/${post.slug}`}>
               <a>{post.translations[lang]}</a>
             </Link>
-            {i !== arr.length - 1 && <span>, </span>}
+            {i !== arr.length - 1 ? <span>, </span> : null}
           </Fragment>
         );
       })}

src/pages/[...postInfo].tsx

@@ -140,16 +140,16 @@ const Post = ({
                 <PostMetadata post={post} />
               </header>
               <main className="post-body" data-testid={"post-body-div"}>
-                {post.series && (
+                {post.series ? (
                   <SeriesToC
                     post={post}
                     postSeries={seriesPosts}
                     collectionSlug={post.collectionSlug}
                   />
-                )}
-                {post.translations && Object.keys(post.translations).length && (
+                ) : null}
+                {post.translations && Object.keys(post.translations).length ? (
                   <TranslationsHeader post={post} />
-                )}
+                ) : null}
                 {result}
               </main>
             </>