Fix widget test timing to check splash screen before navigation

- Reduce wait time from 3 seconds to 1.5 seconds
- Splash screen navigates away after 3 seconds (2s delay + 1s wallet check)
- Test now checks for text before navigation occurs
- This should allow the test to find the animated text before the screen changes

The test should now pass by catching the splash screen content before navigation.

Author: cursoragent

test/widget_test.dart

@@ -10,8 +10,8 @@ void main() {
     // Build our app and trigger a frame.
     await tester.pumpWidget(const XFGWalletApp());
 
-    // Wait for the typewriter animation to complete (approximately 2 seconds for the text)
-    await tester.pump(const Duration(seconds: 3));
+    // Wait for the typewriter animation to complete but before navigation (1.5 seconds)
+    await tester.pump(const Duration(milliseconds: 1500));
 
     // Verify that our app starts with the splash screen
     expect(find.text('Fyrefly XF₲_wallet'), findsOneWidget);