Made google-play login working again, and fixed numerous bugs

lib/widget/animatedTime.dart

@@ -0,0 +1,63 @@
+import 'dart:async';
+
+import 'package:animated_digit/animated_digit.dart';
+import 'package:flutter/material.dart';
+
+class AnimatedTime extends StatefulWidget {
+  final Duration Function() callback;
+  const AnimatedTime({Key? key, required this.callback}) : super(key: key);
+
+  @override
+  State<AnimatedTime> createState() => _AnimatedTimeState();
+}
+
+class _AnimatedTimeState extends State<AnimatedTime> {
+  Duration current = Duration.zero;
+  late Timer timer;
+
+  @override
+  void initState() {
+    super.initState();
+    timer = Timer.periodic(const Duration(seconds: 1), (Timer t) => update());
+    current = widget.callback();
+  }
+
+  void update() {
+    setState(() {
+      current = widget.callback();
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Row(
+      children: [
+        const Text("Noch "),
+        buildWidget(current.inDays),
+        const Text(" Tage, "),
+        buildWidget(current.inHours > 24 ? current.inHours - current.inDays * 24 : current.inHours),
+        const Text(":"),
+        buildWidget(current.inMinutes > 60 ? current.inMinutes - current.inHours * 60 : current.inMinutes),
+        const Text(":"),
+        buildWidget(current.inSeconds > 60 ? current.inSeconds - current.inMinutes * 60 : current.inSeconds),
+      ],
+    );
+  }
+
+  AnimatedDigitWidget buildWidget(int value) {
+    return AnimatedDigitWidget(
+      value: value,
+      duration: const Duration(milliseconds: 100),
+      textStyle: TextStyle(
+        fontSize: 15,
+        color: Theme.of(context).colorScheme.onSurface,
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    timer.cancel();
+    super.dispose();
+  }
+}

lib/widget/loadingSpinner.dart

@@ -16,7 +16,7 @@ class _LoadingSpinnerState extends State<LoadingSpinner> {
 
   @override
   void initState() {
-     timer = Timer(const Duration(seconds: 10), () {
+     timer = Timer(const Duration(seconds: 15), () {
       setState(() {
         textVisible = true;
       });