Improve logger snackbar and open gleap (#869)

<!-- This is an auto-generated comment: release notes by OSS
Entelligence.AI -->
### Summary by Entelligence.AI

- New Feature: Introduced `LoggerSnackbar` widget for enhanced error and
exception handling. This feature provides a user-friendly way to display
errors and exceptions.
- Refactor: Updated the `_MyAppState` class to use the new
`LoggerSnackbar` widget in `exceptionAlertBuilder` and
`errorAlertBuilder`, improving the visibility and clarity of error
messages.
- New Feature: Added an action button within the `LoggerSnackbar` widget
that allows users to share errors for further investigation, enhancing
the app's debugging capabilities.
<!-- end of auto-generated comment: release notes by OSS Entelligence.AI
-->

app/lib/main.dart

@@ -246,27 +246,11 @@ class _MyAppState extends State<MyApp> with WidgetsBindingObserver {
                 options: TalkerWrapperOptions(
                   enableErrorAlerts: true,
                   enableExceptionAlerts: true,
+                  errorAlertBuilder: (context, data) {
+                    return LoggerSnackbar(error: data);
+                  },
                   exceptionAlertBuilder: (context, data) {
-                    return Container(
-                      width: double.infinity,
-                      padding: const EdgeInsets.all(12),
-                      decoration: BoxDecoration(
-                        color: Colors.red,
-                        borderRadius: BorderRadius.circular(10),
-                      ),
-                      child: ListTile(
-                        contentPadding: const EdgeInsets.all(0),
-                        leading: const Icon(Icons.error_outline, color: Colors.white),
-                        title: Text(
-                          data.message ?? 'Something went wrong! Please try again later.',
-                          style: const TextStyle(color: Colors.white, fontWeight: FontWeight.bold),
-                        ),
-                        trailing: IconButton(
-                          icon: const Icon(Icons.share, color: Colors.white),
-                          onPressed: () {},
-                        ),
-                      ),
-                    );
+                    return LoggerSnackbar(exception: data);
                   },
                 ),
                 child: const DeciderWidget(),

app/lib/utils/logger.dart

@@ -1,3 +1,5 @@
+import 'package:flutter/material.dart';
+import 'package:gleap_sdk/gleap_sdk.dart';
 import 'package:talker_flutter/talker_flutter.dart';
 
 class Logger {
@@ -33,3 +35,37 @@ class Logger {
     instance.talker.handle(exception, stackTrace, message ?? 'An error occurred. Please try again later.');
   }
 }
+
+class LoggerSnackbar extends StatelessWidget {
+  final TalkerError? error;
+  final TalkerException? exception;
+  const LoggerSnackbar({super.key, this.error, this.exception}) : assert(error != null || exception != null);
+
+  @override
+  Widget build(BuildContext context) {
+    final data = error ?? exception!;
+    return Container(
+      width: double.infinity,
+      padding: const EdgeInsets.all(12),
+      decoration: BoxDecoration(
+        color: Colors.red,
+        borderRadius: BorderRadius.circular(10),
+      ),
+      child: ListTile(
+        contentPadding: const EdgeInsets.all(0),
+        leading: const Icon(Icons.error_outline, color: Colors.white),
+        title: Text(
+          data.message ?? 'Something went wrong! Please try again later.',
+          style: const TextStyle(color: Colors.white, fontWeight: FontWeight.bold),
+        ),
+        trailing: IconButton(
+          icon: const Icon(Icons.share, color: Colors.white),
+          onPressed: () async {
+            // TODO: Have a custom form which can be prefilled with the error stack trace instead of opening the Gleap Homepage
+            await Gleap.open();
+          },
+        ),
+      ),
+    );
+  }
+}