Update README and localization files to enhance project description, add error messages, and improve Persian translations.

i18n/locales/en.json

@@ -107,7 +107,23 @@
     "readMore": "Read article"
   },
   "common": {
-    "present": "Present"
+    "present": "Present",
+    "backToHome": "Back to Home",
+    "goBack": "Go Back"
+  },
+  "error": {
+    "notFoundTitle": "Page Not Found",
+    "notFoundMessage": "The page you're looking for doesn't exist or has been moved.",
+    "forbiddenTitle": "Access Denied",
+    "forbiddenMessage": "You don't have permission to access this resource.",
+    "serverErrorTitle": "Server Error",
+    "serverErrorMessage": "Something went wrong on our end. Please try again later.",
+    "defaultTitle": "Oops! Something Went Wrong",
+    "defaultMessage": "An unexpected error occurred. Please try again.",
+    "helpTitle": "Need Help?",
+    "suggestion1": "Check the URL for typos",
+    "suggestion2": "Use the navigation menu to find what you're looking for",
+    "suggestion3": "Return to the homepage and start fresh"
   },
   "meta": {
     "portfolioTitleSuffix": "Portfolio"