update image resolution and search bar cursor color

lib/pages/main/util.dart

@@ -404,11 +404,15 @@ String removeTrailingZeros(double number) {
   return result;
 }
 
-
 bool isValidEmail(String email) {
   // Define a regular expression for validating an email
   final emailRegex = RegExp(r'^[^@\s]+@[^@\s]+\.[^@\s]+$');
 
   // Check if the email matches the pattern
   return emailRegex.hasMatch(email);
-}
+}
+
+String capitalizeFirstLetter(String text) {
+  if (text.isEmpty) return text;
+  return text[0].toUpperCase() + text.substring(1);
+}