Refactor UI components across various screens to use SVG avatars, enhance biometric authentication check, and improve code readability with consistent formatting.

lib/features/quick_pay/screens/quick_pay_screen.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_svg/svg.dart';
 import 'package:kmobile/features/quick_pay/screens/quick_pay_outside_bank_screen.dart';
 import 'package:kmobile/features/quick_pay/screens/quick_pay_within_bank_screen.dart';
 import 'package:material_symbols_icons/material_symbols_icons.dart';
@@ -26,13 +27,18 @@ class _QuickPayScreen extends State<QuickPayScreen> {
           style: TextStyle(color: Colors.black, fontWeight: FontWeight.w500),
         ),
         centerTitle: false,
-        actions: const [
+        actions: [
           Padding(
-            padding: EdgeInsets.only(right: 10.0),
+            padding: const EdgeInsets.only(right: 10.0),
             child: CircleAvatar(
-              backgroundImage: AssetImage('assets/images/avatar.jpg'),
-              // Replace with your image
+              backgroundColor: Colors.grey[200],
               radius: 20,
+              child: SvgPicture.asset(
+                'assets/images/avatar_male.svg',
+                width: 40,
+                height: 40,
+                fit: BoxFit.cover,
+              ),
             ),
           ),
         ],