Content cleanup: fix unclosed tags, remove em/en dashes, verify translations

- Fixed 3 SI event posts that were missing their </article> and </main> tags
- Replaced all punctuation em-dashes and spaced en-dashes (435 across 64 files)
  with commas; normalized a SI date range to a hyphen to match EN/MK
- Verified the new Gallery + in-post gallery content is fully translated in
  EN/MK/SI (headings, titles, links, nav labels) with no English leftovers

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

en/news/index.html

@@ -22,7 +22,7 @@
       gtag('config', 'G-WVYV807VSS');
     </script>
     <script src="/consent.js" defer></script>
-    <meta name="description" content="Everything new at MSOS in one place — events and projects, blog stories, announcements and official updates for Macedonian students in Slovenia.">
+    <meta name="description" content="Everything new at MSOS in one place, events and projects, blog stories, announcements and official updates for Macedonian students in Slovenia.">
     <link rel="canonical" href="https://msosorg.com/en/news/">
     <link rel="alternate" hreflang="en" href="https://msosorg.com/en/news/">
     <link rel="alternate" hreflang="mk" href="https://msosorg.com/mk/news/">
@@ -31,7 +31,7 @@
     <meta property="og:type" content="website">
     <meta property="og:site_name" content="Macedonian Student Organisation in Slovenia">
     <meta property="og:title" content="News and updates - MSOS">
-    <meta property="og:description" content="Everything new at MSOS in one place — events and projects, blog stories, announcements and official updates for Macedonian students in Slovenia.">
+    <meta property="og:description" content="Everything new at MSOS in one place, events and projects, blog stories, announcements and official updates for Macedonian students in Slovenia.">
     <meta property="og:url" content="https://msosorg.com/en/news/">
     <meta property="og:image" content="https://msosorg.com/images/og-default.jpg">
     <meta property="og:locale" content="en_GB">
@@ -39,7 +39,7 @@
     <meta property="og:locale:alternate" content="sl_SI">
     <meta name="twitter:card" content="summary_large_image">
     <meta name="twitter:title" content="News and updates - MSOS">
-    <meta name="twitter:description" content="Everything new at MSOS in one place — events and projects, blog stories, announcements and official updates for Macedonian students in Slovenia.">
+    <meta name="twitter:description" content="Everything new at MSOS in one place, events and projects, blog stories, announcements and official updates for Macedonian students in Slovenia.">
     <meta name="twitter:image" content="https://msosorg.com/images/og-default.jpg">
     <script type="application/ld+json">{"@context":"https://schema.org","@type":"Organization","name":"Macedonian Student Organisation in Slovenia","alternateName":"MSOS","url":"https://msosorg.com/en/","logo":"https://msosorg.com/images/1-logo.png","email":"info@msosorg.com","address":{"@type":"PostalAddress","streetAddress":"Masarykova cesta 24","postalCode":"1000","addressLocality":"Ljubljana","addressCountry":"SI"},"sameAs":["https://www.facebook.com/msos.org","https://www.instagram.com/msosorg_com","https://www.linkedin.com/company/msos-org","https://www.youtube.com/@msosorg"]}</script>
     <link rel="icon" type="image/png" href="/favicon-96x96.png" sizes="96x96">
@@ -391,7 +391,7 @@
             <div class="container">
                 <div class="cta-content">
                     <h2>Never miss an MSOS update</h2>
-                    <p>News, announcements and open calls — straight to your inbox.</p>
+                    <p>News, announcements and open calls, straight to your inbox.</p>
                     <form class="subscribe-form-bottom">
                          <div class="input-wrapper">
                             <input type="email" placeholder="Enter your email">