Improve frontend traslations

frontend/src/locales/eu/subscription.json

@@ -70,5 +70,20 @@
         "support": "24/7 laguntza dedikatua + kontu kudeatzailea",
         "recommended_for": "Ogi-denda kateak, frantziziak, eskala mugagabea"
       }
-    }
+    },
+  "billing": {
+    "monthly": "Hilekoa",
+    "yearly": "Urtekoa",
+    "save_percent": "Aurreztu %17",
+    "free_months": "{count, plural, one {# hilabete doan} other {# hilabete doan}}",
+    "free_trial_days": "{count, plural, one {# egun doan} other {# egun doan}}",
+    "card_required": "Txartela beharrezkoa balidaziorako"
+  },
+  "limits": {
+    "users": "Erabiltzaileak",
+    "locations": "Kokapena",
+    "products": "Produktuak",
+    "forecast": "Aurreikuspena",
+    "unlimited": "Mugagabea"
   }
+}