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/cookie-policy/index.html

@@ -208,7 +208,7 @@
 
                 <h2>How we use cookies</h2>
 
-                <p>We keep cookies to a minimum. Strictly necessary and preference cookies (such as remembering your language) are always active. We also use Google Analytics to understand how the site is used and improve it, but only if you accept analytics cookies through our consent banner &mdash; no analytics cookies are set until you agree.</p>
+                <p>We keep cookies to a minimum. Strictly necessary and preference cookies (such as remembering your language) are always active. We also use Google Analytics to understand how the site is used and improve it, but only if you accept analytics cookies through our consent banner, no analytics cookies are set until you agree.</p>
 
                 <h2>Types of cookies we may use</h2>