Show error messages

lib/ui/app/dialogs/error_dialog.dart

@@ -2,12 +2,13 @@ import 'package:flutter/material.dart';
 import 'package:flutter_redux/flutter_redux.dart';
 import 'package:invoiceninja_flutter/redux/app/app_actions.dart';
 import 'package:invoiceninja_flutter/redux/app/app_state.dart';
-import 'package:invoiceninja_flutter/ui/app/buttons/elevated_button.dart';
-import 'package:invoiceninja_flutter/ui/app/responsive_padding.dart';
+import 'package:invoiceninja_flutter/redux/auth/auth_actions.dart';
+import 'package:invoiceninja_flutter/utils/dialogs.dart';
 import 'package:invoiceninja_flutter/utils/localization.dart';
 
 class ErrorDialog extends StatelessWidget {
   const ErrorDialog(this.error, {this.clearErrorOnDismiss = false});
+
   final Object error;
   final bool clearErrorOnDismiss;
 
@@ -16,36 +17,28 @@ class ErrorDialog extends StatelessWidget {
     final localization = AppLocalization.of(context);
     final store = StoreProvider.of<AppState>(context);
 
-    return ResponsivePadding(
-      child: Column(
-        children: <Widget>[
-          Material(
-            child: Padding(
-              padding: const EdgeInsets.all(28.0),
-              child: Column(
-                crossAxisAlignment: CrossAxisAlignment.center,
-                children: <Widget>[
-                  Text(localization.anErrorOccurred,
-                      style: Theme.of(context).textTheme.headline6),
-                  SizedBox(height: 20.0),
-                  Text(error.toString()),
-                  SizedBox(height: 40.0),
-                  ElevatedButton(
+    return AlertDialog(
+      title: Text(localization.anErrorOccurred),
+      content: Text(error.toString()),
+      actions: [
+        FlatButton(
+            child: Text(localization.logout.toUpperCase()),
+            onPressed: () {
+              confirmCallback(
+                  context: context,
+                  callback: () {
+                    store.dispatch(UserLogout(context));
+                  });
+            }),
+        FlatButton(
+            child: Text(localization.dismiss.toUpperCase()),
             onPressed: () {
               if (clearErrorOnDismiss) {
                 store.dispatch(ClearLastError());
               }
               Navigator.of(context).pop();
-                    },
-                    label: localization.dismiss,
-                  ),
+            }),
       ],
-              ),
-            ),
-          ),
-          Expanded(child: Container()),
-        ],
-      ),
     );
   }
 }

lib/ui/app/menu_drawer.dart

@@ -579,8 +579,8 @@ class SidebarFooter extends StatelessWidget {
               onPressed: () => viewPdf(InvoiceEntity(), context),
             ),
              */
-            if (state.lastError.isNotEmpty &&
-                (state.isSelfHosted || !kReleaseMode))
+            //if (state.lastError.isNotEmpty && (state.isSelfHosted || !kReleaseMode))
+            if (state.lastError.isNotEmpty)
               IconButton(
                 icon: Icon(
                   Icons.warning,