folder restructuring

lib/widget/loading_spinner.dart

@@ -0,0 +1,55 @@
+
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+
+class LoadingSpinner extends StatefulWidget {
+  const LoadingSpinner({super.key});
+
+  @override
+  State<LoadingSpinner> createState() => _LoadingSpinnerState();
+}
+
+class _LoadingSpinnerState extends State<LoadingSpinner> {
+  bool textVisible = false;
+  late Timer timer;
+
+  @override
+  void initState() {
+     timer = Timer(const Duration(seconds: 30), () {
+      setState(() {
+        textVisible = true;
+      });
+    });
+
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) => Center(
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          Visibility(
+            visible: !textVisible,
+            replacement: const Icon(Icons.sentiment_dissatisfied_outlined),
+            child: const CircularProgressIndicator(),
+          ),
+          const SizedBox(height: 30),
+          Visibility(
+            visible: textVisible,
+            child: const Text(
+                textAlign: TextAlign.center,
+                'Irgendetwas funktioniert nicht!\nBist du mit dem Internet verbunden?\n\nVersuche die App neuzustarten'
+            ),
+          ),
+        ],
+      ),
+    );
+
+  @override
+  void dispose() {
+    timer.cancel();
+    super.dispose();
+  }
+}