i18n(suppliers): +4 translations for column labels

La timp 90d, Avg zile, Cheltuit 90d, Livrare (zile).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

lang/en.json

@@ -228,7 +228,7 @@
   "Automobile": "Vehicles",
   "Avans": "Advance",
   "Avans achitat": "Advance paid",
-  "Avg zile": "Avg zile",
+  "Avg zile": "Avg days",
   "Azi": "Today",
   "Așteaptă piese": "Awaiting parts",
   "Așteaptă piesele": "Awaiting parts",
@@ -331,7 +331,7 @@
   "Cheltuieli (luna)": "Expenses (month)",
   "Cheltuieli pe categorie": "Cheltuieli pe categorie",
   "Cheltuit": "Spent",
-  "Cheltuit 90d": "Cheltuit 90d",
+  "Cheltuit 90d": "Spent 90d",
   "Chirie": "Rent",
   "Chitanțe": "Receipts",
   "Chitanță": "Receipt",
@@ -882,7 +882,7 @@
   "La editare lasă gol pentru a păstra parola actuală.": "Leave empty to keep current password when editing.",
   "La revedere": "Goodbye",
   "La succes: webhook → automat status=paid + extends company.active_until": "La succes: webhook → automat status=paid + extends company.active_until",
-  "La timp 90d": "La timp 90d",
+  "La timp 90d": "On time 90d",
   "La trecere pe „Montată\" se scade automat din stoc.": "On \"Installed\" transition auto-deducts from stock.",
   "Labor": "Labor",
   "Labors": "Labors",
@@ -914,7 +914,7 @@
   "Liste configurabile": "Configurable lists",
   "Listă": "List",
   "Livrare": "Livrare",
-  "Livrare (zile)": "Livrare (zile)",
+  "Livrare (zile)": "Delivery (days)",
   "Livrare gratuită peste": "Free delivery over",
   "Livrat": "Delivered",
   "Loading": "Loading...",