Improve the frontend and fix TODOs

frontend/src/locales/en/suppliers.json

@@ -73,7 +73,27 @@
     "delivery_status": "Delivery Status",
     "quality_rating": "Quality Rating",
     "delivery_rating": "Delivery Rating",
-    "invoice_status": "Invoice Status"
+    "invoice_status": "Invoice Status",
+    "supplier_code": "Supplier Code",
+    "lead_time": "Lead Time (days)",
+    "minimum_order": "Minimum Order",
+    "credit_limit": "Credit Limit",
+    "currency": "Currency",
+    "created_date": "Created Date",
+    "updated_date": "Last Updated",
+    "notes": "Notes"
+  },
+  "sections": {
+    "contact_info": "Contact Information",
+    "commercial_info": "Commercial Information",
+    "performance": "Performance and Statistics",
+    "notes": "Notes"
+  },
+  "placeholders": {
+    "name": "Supplier name",
+    "contact_person": "Contact person name",
+    "supplier_code": "Unique code",
+    "notes": "Notes about the supplier"
   },
   "descriptions": {
     "supplier_type": "Select the type of products or services this supplier offers",
@@ -81,4 +101,4 @@
     "quality_rating": "1 to 5 star rating based on product quality",
     "delivery_rating": "1 to 5 star rating based on delivery punctuality and condition"
   }
-}
+}