feat: Translate frontend/src/i18n/en.json in fa

96% of minimum 50% translated source file: 'frontend/src/i18n/en.json'
on 'fa'.

Sync of partially translated files: 
untranslated content is included with an empty translation 
or source language content depending on file format

frontend/src/i18n/fa.json

@@ -259,7 +259,7 @@
     "days": "روزها",
     "hours": "ساعت",
     "minutes": "دقیقه",
-    "seconds": "Seconds",
+    "seconds": "ثانیه",
     "unit": "Time Unit"
   }
 }