fix(news): style Sources lists with guide-linklist across articles

The Sources sections on the Welcome Days, accommodation-search and
Ad futura scholarship articles used bare <ul>/<ol> lists, which rendered
as default bullets/numbers with plain blue links instead of the site's
standard source-list style (chain icon, teal links, row dividers).

Add class="guide-linklist" to the Sources lists (converting Ad futura's
<ol> to <ul>) in the content/ source markdown and the generated en/mk/si
pages, matching the Student Welcome Guide. Edits scoped to the affected
articles to avoid unrelated build-tool reformatting churn.

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

en/blog/ad-futura-scholarship-slovenia-2026/index.html

@@ -329,10 +329,10 @@
                     <p>Start by confirming that your programme is eligible, checking whether tuition applies, finding a representative in Slovenia when necessary and collecting the documents well before <strong>2 September 2026</strong>.</p>
                     <p><strong>Author: MSOS Team</strong></p>
                     <h2 id="sources">Sources</h2>
-                    <ol>
+                    <ul class="guide-linklist">
                         <li><a href="https://www.srips-rs.si/vsi-razpisi/razpis/javni-razpis-za-dodelitev-stipendij-tujim-drzavljanom-za-studij-v-sloveniji-za-leto-2026-380-javni-razpis" target="_blank" rel="noopener">Public Scholarship Fund of Slovenia: Official 380th Public Call and application documents</a></li>
                         <li><a href="https://www.uni-lj.si/novice/2026-02-04-javni-razpis-za-dodelitev-stipendij-tujim-drzavljanom-zahodnega-balkana-za-studij-v-sloveniji-za-leto-2026" target="_blank" rel="noopener">University of Ljubljana: Scholarship announcement for Western Balkan students</a></li>
-                    </ol>
+                    </ul>
                     <p class="guide-last-checked">Last checked: 2 August 2026</p>
                 </div>