Finish the Macedonia stories and enrich image captions

Complete the three remaining Macedonia stories with sourced photos, so
both country sections are now fully illustrated.

Articles (EN/SI/MK each), placeholders replaced with real images:
- A Table Full of Macedonia (shared table, tavče gravče, ajvar,
  pastrmajlija).
- Music, Dance and the Moments That Bring Us Together (oro celebration,
  tapan and zurla, kopachkata, an MSOS event).
- History You Can Still Walk Through (Stobi, Heraclea Lyncestis, Kokino,
  Makedonium).
Each image is center-cropped to a uniform 3:2, downscaled, and given an
attribution caption with place, photographer where known, and source
link.

Captions:
- Replace bare one-word labels with a short descriptive phrase in all
  three languages, so a caption reads "Kokino, a prehistoric megalithic
  observatory" rather than just "Kokino". Applies across the food,
  culture, and heritage stories.
- Support an author-only credit with no external link, used for the
  photo from the MSOS archive.

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

en/get-to-know-slovenia/a-first-taste-of-slovenian-food/index.html

@@ -182,7 +182,7 @@
 
                 <figure class="article-main-image">
                     <img src="../../../images/slovenia-food-regional-table-hero.jpg" alt="Several regional Slovenian dishes served together on a table">
-                    <figcaption>Traditional Slovenian dishes. Photo: <a href="https://www.tasteslovenia.si/en/taste-slovenia/traditional-slovenian-food/" target="_blank" rel="noopener">tasteslovenia.si</a></figcaption>
+                    <figcaption>A spread of traditional Slovenian dishes. Photo: <a href="https://www.tasteslovenia.si/en/taste-slovenia/traditional-slovenian-food/" target="_blank" rel="noopener">tasteslovenia.si</a></figcaption>
                 </figure>
 
             <div class="article-body">
@@ -234,7 +234,7 @@
 
                 <figure class="article-inline-image">
                     <img src="../../../images/slovenia-food-idrijski-zlikrofi.jpg" alt="Idrijski žlikrofi served with a meat sauce">
-                    <figcaption>Idrijski žlikrofi. Photo: <a href="https://www.turisticnekmetije.si/fr/gastronomie/recettes/recette/idrijski-zlikrofi-z-mesno-omako" target="_blank" rel="noopener">turisticnekmetije.si</a></figcaption>
+                    <figcaption>Idrijski žlikrofi, dumplings from Idrija. Photo: <a href="https://www.turisticnekmetije.si/fr/gastronomie/recettes/recette/idrijski-zlikrofi-z-mesno-omako" target="_blank" rel="noopener">turisticnekmetije.si</a></figcaption>
                 </figure>
 
                 <h2>Frika tastes like the Soča Valley</h2>
@@ -251,7 +251,7 @@
 
                 <figure class="article-inline-image">
                     <img src="../../../images/slovenia-food-frika.jpg" alt="Frika made with local cheese and potatoes">
-                    <figcaption>Frika. Photo: <a href="https://jernejkitchen.com/" target="_blank" rel="noopener">jernejkitchen.com</a></figcaption>
+                    <figcaption>Frika, a cheese and potato dish from the Soča Valley. Photo: <a href="https://jernejkitchen.com/" target="_blank" rel="noopener">jernejkitchen.com</a></figcaption>
                 </figure>
 
                 <h2>Bograč is a Prekmurje meal built for a group</h2>
@@ -280,7 +280,7 @@
 
                 <figure class="article-inline-image">
                     <img src="../../../images/slovenia-food-potica.jpg" alt="Sliced walnut potica baked in a traditional round mould">
-                    <figcaption>Potica. Photo: <a href="https://www.zps.si/prehrana/recept-za-slovensko-potico-z-rozinami-2023-04-05" target="_blank" rel="noopener">zps.si</a></figcaption>
+                    <figcaption>Potica, a rolled Slovenian festive cake. Photo: <a href="https://www.zps.si/prehrana/recept-za-slovensko-potico-z-rozinami-2023-04-05" target="_blank" rel="noopener">zps.si</a></figcaption>
                 </figure>
 
                 <h2>One meal cannot explain the country</h2>