Add proper geo coordinates

Author: mribeirodantas

sites/main-site/src/content/events/2026/hackathon-march-2026/CotedIvoire.mdx

@@ -12,7 +12,7 @@ locations:
     address: 02 BP 801 Abidjan 02 Côte d'Ivoire
     links:
       - https://www.univ-na.ci/structures/ufr-sciences-et-gestion-de-l-environnement.html
-    geoCoordinates: [9XQJ+P9 Abidjan]
+    geoCoordinates: [5.389479704159396, -4.01915794772532]
     country: Côte d'Ivoire
     city: Abidjan
 layout: "@layouts/events/HackathonMarch2026.astro"