refactored welcome string to splash screen

lib/config/routes.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:kmobile/features/auth/screens/mpin_screen.dart';
+import 'package:kmobile/features/auth/screens/splash_screen.dart';
 import '../app.dart';
 import '../features/auth/screens/login_screen.dart';
 // import '../features/auth/screens/forgot_password_screen.dart';

lib/features/auth/screens/splash_screen.dart

@@ -1,70 +1,51 @@
 import '../../../l10n/app_localizations.dart';
 
 import 'package:flutter/material.dart';
-import 'dart:async';
 
-class WelcomeScreen extends StatefulWidget {
-  final VoidCallback onContinue;
-
-  const WelcomeScreen({super.key, required this.onContinue});
+class SplashScreen extends StatefulWidget {
+  const SplashScreen({super.key});
 
   @override
-  State<WelcomeScreen> createState() => _WelcomeScreenState();
+  State<SplashScreen> createState() => _SplashScreenState();
 }
 
-class _WelcomeScreenState extends State<WelcomeScreen> {
-  @override
-  void initState() {
-    super.initState();
-
-    // Automatically go to logizn after 4 seconds
-    Timer(const Duration(seconds: 4), () {
-      widget.onContinue();
-    });
-  }
-
+class _SplashScreenState extends State<SplashScreen> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
       body: Stack(
         children: [
-          /// 🔹 Background Image
           Positioned.fill(
             child: Image.asset(
               'assets/images/kconnect2.webp',
               fit: BoxFit.cover,
             ),
           ),
-
-          /// 🔹 Centered Text Overlay
           Center(
             child: Column(
               mainAxisSize: MainAxisSize.min,
               children: [
                 Text(
                   AppLocalizations.of(context).kconnect,
-                  style: TextStyle(
+                  style: const TextStyle(
                     fontSize: 36,
                     fontWeight: FontWeight.bold,
-                    color: Theme.of(context).dialogBackgroundColor,
-                    letterSpacing: 1.5,
+                    color: Color(0xFFFFFFFF),
                   ),
                 ),
                 const SizedBox(height: 12),
                 Text(
                   AppLocalizations.of(context).kccBankFull,
                   textAlign: TextAlign.center,
-                  style: TextStyle(
+                  style: const TextStyle(
                     fontSize: 18,
-                    color: Theme.of(context).dialogBackgroundColor,
+                    color: Color(0xFFFFFFFF),
                     letterSpacing: 1.2,
                   ),
                 ),
               ],
             ),
           ),
-
-          /// 🔹 Loading Spinner at Bottom
           Positioned(
             bottom: 40,
             left: 0,