refactor(neon): Use Object? instead of dynamic for errors

Signed-off-by: jld3103 <jld3103yt@gmail.com>

packages/neon/neon/lib/src/utils/exceptions.dart

@@ -22,13 +22,13 @@ class NeonExceptionDetails {
   final bool isUnauthorized;
 }
 
-/// Extensible [Exception] to be used for displaying custom errors in the UI
+/// Extensible [Exception] to be used for displaying custom errors in the UI.
 @immutable
 abstract class NeonException implements Exception {
   /// Creates a NeonException
   const NeonException();
 
-  /// Details that will be rendered by the UI
+  /// Details that will be rendered by the UI.
   NeonExceptionDetails get details;
 }
 

packages/neon/neon/lib/src/widgets/cached_image.dart

@@ -180,7 +180,7 @@ class _NeonCachedImageState extends State<NeonCachedImage> {
         ),
       );
 
-  Widget _buildError(final dynamic error) =>
+  Widget _buildError(final Object? error) =>
       widget.errorBuilder?.call(context, error) ??
       NeonError(
         error,

packages/neon/neon/lib/src/widgets/error.dart

@@ -28,7 +28,7 @@ class NeonError extends StatelessWidget {
   /// The error object.
   ///
   /// Can be of type [String] or [Exception], various subtypes of `Exception` are also handled separately.
-  final dynamic error;
+  final Object? error;
 
   /// A function that's called when the user decides to retry the action that lead to the error.
   final VoidCallback onRetry;
@@ -47,7 +47,7 @@ class NeonError extends StatelessWidget {
   final Color? color;
 
   /// Shows a [SnackBar] popup for the [error].
-  static void showSnackbar(final BuildContext context, final dynamic error) {
+  static void showSnackbar(final BuildContext context, final Object? error) {
     final details = getDetails(error);
 
     ScaffoldMessenger.of(context).showSnackBar(
@@ -132,7 +132,7 @@ class NeonError extends StatelessWidget {
 
   /// Gets the details for a given [error].
   @internal
-  static NeonExceptionDetails getDetails(final dynamic error) {
+  static NeonExceptionDetails getDetails(final Object? error) {
     switch (error) {
       case String():
         return NeonExceptionDetails(

packages/neon/neon/lib/src/widgets/list_view.dart

@@ -18,7 +18,7 @@ class NeonListView<T> extends StatelessWidget {
 
   final Iterable<T>? items;
   final bool isLoading;
-  final dynamic error;
+  final Object? error;
   final RefreshCallback onRefresh;
   final Widget Function(BuildContext, T data) builder;
   final String? scrollKey;