feat: Increase free shipping threshold from 3000 to 10000 RSD

Update free shipping minimum from 3,000 RSD to 10,000 RSD across:
- TickerBar component
- English translations (en.json)
- Serbian translations (sr.json)
- French translations (fr.json)
- German translations (de.json)

src/i18n/messages/fr.json

@@ -16,7 +16,7 @@
       "ctaButton": "Transformer Mes Cheveux & Ma Peau",
       "learnStory": "Découvrir Notre Histoire",
       "moneyBack": "30 Jours Satisfait",
-      "freeShipping": "Livraison Gratuite +3.000 RSD",
+      "freeShipping": "Livraison Gratuite +10.000 RSD",
       "crueltyFree": "Cruelty Free"
     },
     "collection": "Notre Collection",
@@ -117,7 +117,7 @@
     "email": "Email",
     "emailReply": "Nous répondons dans les 24 heures",
     "shippingTitle": "Livraison",
-    "freeShipping": "Livraison gratuite +3.000 RSD",
+    "freeShipping": "Livraison gratuite +10.000 RSD",
     "deliveryTime": "Livré dans 2-5 jours ouvrables",
     "location": "Localisation",
     "locationDesc": "Serbie",
@@ -220,7 +220,7 @@
     "naturalIngredients": "Ingrédients Naturels",
     "noAdditives": "Sans Additifs",
     "freeShipping": "Livraison Gratuite",
-    "ordersOver": "Commandes +3.000 RSD"
+    "ordersOver": "Commandes +10.000 RSD"
   },
   "ProblemSection": {
     "title": "Le Problème",
@@ -295,7 +295,7 @@
     "qty": "Qté",
     "adding": "Ajout en cours...",
     "transformHairSkin": "Transformer Mes Cheveux & Ma Peau",
-    "freeShipping": "Livraison gratuite sur les commandes de +3.000 RSD",
+    "freeShipping": "Livraison gratuite sur les commandes de +10.000 RSD",
     "guarantee": "Garantie 30 Jours",
     "secureCheckout": "Paiement Sécurisé",
     "easyReturns": "Retours Faciles",