feat: enhance error boundary widget with improved error handling and UI updates

- Added a method to ignore specific errors related to RenderFlex overflow.
- Refactored the error display layout to use a centered scrollable view.
- Improved visual presentation with a gradient background for the error icon and updated button styles for retry functionality.

lib/core/widgets/error_boundary.dart

@@ -31,7 +31,19 @@ class _ErrorBoundaryState extends ConsumerState<ErrorBoundary> {
   bool _hasError = false;
   void Function(FlutterErrorDetails details)? _previousOnError;
 
+  bool _shouldIgnoreError(Object error) {
+    // Ignore RenderFlex overflow errors (layout issues)
+    final errorString = error.toString();
+    return errorString.contains('RenderFlex') ||
+        errorString.contains('overflow') && errorString.contains('pixels');
+  }
+
   void _scheduleHandleError(Object error, StackTrace? stack) {
+    // Skip errors that should be ignored
+    if (_shouldIgnoreError(error)) {
+      return;
+    }
+    
     // Defer to next frame to avoid setState during build exceptions
     WidgetsBinding.instance.addPostFrameCallback((_) {
       if (mounted) {
@@ -119,39 +131,93 @@ class _ErrorBoundaryState extends ConsumerState<ErrorBoundary> {
         child: Scaffold(
           backgroundColor: context.conduitTheme.surfaceBackground,
           body: SafeArea(
-            child: Padding(
+            child: Center(
-              padding: const EdgeInsets.all(16.0),
+              child: SingleChildScrollView(
+                padding: const EdgeInsets.symmetric(
+                  horizontal: Spacing.pagePadding,
+                  vertical: Spacing.lg,
+                ),
+                child: Container(
+                  constraints: const BoxConstraints(maxWidth: 480),
+                  decoration: BoxDecoration(
+                    color: context.conduitTheme.cardBackground,
+                    borderRadius: BorderRadius.circular(
+                      context.conduitTheme.radiusLg,
+                    ),
+                    border: Border.all(
+                      color: context.conduitTheme.cardBorder,
+                      width: BorderWidth.regular,
+                    ),
+                    boxShadow: context.conduitTheme.cardShadows,
+                  ),
+                  padding: const EdgeInsets.all(Spacing.xl),
                   child: Column(
-                mainAxisAlignment: MainAxisAlignment.center,
+                    mainAxisSize: MainAxisSize.min,
                     children: [
-                  Icon(
+                      // Error icon with gradient background
-                    Icons.error_outline,
+                      Container(
-                    size: 64,
+                        width: 80,
+                        height: 80,
+                        decoration: BoxDecoration(
+                          color: context.conduitTheme.errorBackground,
+                          shape: BoxShape.circle,
+                        ),
+                        child: Icon(
+                          Icons.error_outline_rounded,
+                          size: 40,
                           color: context.conduitTheme.error,
                         ),
-                  const SizedBox(height: 16),
+                      ),
+                      const SizedBox(height: Spacing.lg),
+                      
+                      // Error title
                       Text(
                         AppLocalizations.of(context)?.errorMessage ??
-                        'An unexpected error occurred',
+                            'Something went wrong',
-                    style: Theme.of(context).textTheme.headlineSmall?.copyWith(
+                        style: context.conduitTheme.headingSmall,
-                      color: context.conduitTheme.textPrimary,
+                        textAlign: TextAlign.center,
                       ),
-                  ),
+                      const SizedBox(height: Spacing.sm),
-                  const SizedBox(height: 8),
+                      
+                      // Error description
                       Text(
                         enhancedErrorService.getUserMessage(_error!),
                         textAlign: TextAlign.center,
-                    style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                        style: context.conduitTheme.bodySmall?.copyWith(
                           color: context.conduitTheme.textSecondary,
                         ),
                       ),
+                      
                       if (widget.allowRetry) ...[
-                    const SizedBox(height: 24),
+                        const SizedBox(height: Spacing.xl),
-                    FilledButton.icon(
+                        
+                        // Retry button
+                        SizedBox(
+                          width: double.infinity,
+                          child: FilledButton.icon(
                             onPressed: _retry,
-                      icon: const Icon(Icons.refresh),
+                            icon: const Icon(Icons.refresh_rounded),
+                            style: FilledButton.styleFrom(
+                              backgroundColor: context.conduitTheme.buttonPrimary,
+                              foregroundColor: context.conduitTheme.buttonPrimaryText,
+                              padding: const EdgeInsets.symmetric(
+                                horizontal: Spacing.lg,
+                                vertical: Spacing.md,
+                              ),
+                              shape: RoundedRectangleBorder(
+                                borderRadius: BorderRadius.circular(
+                                  context.conduitTheme.radiusMd,
+                                ),
+                              ),
+                              elevation: 0,
+                            ),
                             label: Text(
-                        AppLocalizations.of(context)?.retry ?? 'Retry',
+                              AppLocalizations.of(context)?.retry ?? 'Try Again',
+                              style: context.conduitTheme.bodySmall?.copyWith(
+                                fontWeight: FontWeight.w600,
+                                color: context.conduitTheme.buttonPrimaryText,
+                              ),
+                            ),
                           ),
                         ),
                       ],
@@ -160,6 +226,8 @@ class _ErrorBoundaryState extends ConsumerState<ErrorBoundary> {
                 ),
               ),
             ),
+          ),
+        ),
       );
     }