refactor: Remove FluffyClient and make it no longer static

test/homeserver_picker_test.dart

@@ -2,8 +2,15 @@ import 'package:fluffychat/pages/homeserver_picker.dart';
 import 'package:fluffychat/main.dart';
 import 'package:flutter_test/flutter_test.dart';
 
+import 'utils/test_client.dart';
+
 void main() {
   testWidgets('Test if the widget can be created', (WidgetTester tester) async {
-    await tester.pumpWidget(FluffyChatApp(testWidget: HomeserverPicker()));
+    await tester.pumpWidget(
+      FluffyChatApp(
+        client: await prepareTestClient(),
+        testWidget: HomeserverPicker(),
+      ),
+    );
   });
 }

test/utils/test_client.dart

@@ -1,12 +1,30 @@
+import 'package:fluffychat/utils/database/flutter_famedly_sdk_hive_database.dart';
+import 'package:matrix/encryption/utils/key_verification.dart';
 import 'package:matrix/matrix.dart';
-import 'package:fluffychat/utils/matrix_sdk_extensions.dart/fluffy_client.dart';
+import 'package:matrix_api_lite/fake_matrix_api.dart';
 
-Future<FluffyClient> testClient({
+Future<Client> prepareTestClient({
   bool loggedIn = false,
   String homeserver = 'https://fakeserver.notexisting',
   String id = 'FluffyChat Widget Test',
 }) async {
-  final client = FluffyClient(testMode: true);
+  final client = Client(
+    'FluffyChat Widget Tests',
+    httpClient: FakeMatrixApi(),
+    enableE2eeRecovery: true,
+    verificationMethods: {
+      KeyVerificationMethod.numbers,
+      KeyVerificationMethod.emoji,
+    },
+    importantStateEvents: <String>{
+      'im.ponies.room_emotes', // we want emotes to work properly
+    },
+    databaseBuilder: FlutterFamedlySdkHiveDatabase.hiveDatabaseBuilder,
+    supportedLoginTypes: {
+      AuthenticationTypes.password,
+      AuthenticationTypes.sso
+    },
+  );
   if (homeserver != null) {
     await client.checkHomeserver(homeserver);
   }

test/widget_test.dart

@@ -8,8 +8,12 @@
 import 'package:fluffychat/main.dart';
 import 'package:flutter_test/flutter_test.dart';
 
+import 'utils/test_client.dart';
+
 void main() {
   testWidgets('Test if the app starts', (WidgetTester tester) async {
-    await tester.pumpWidget(FluffyChatApp());
+    await tester.pumpWidget(FluffyChatApp(
+      client: await prepareTestClient(),
+    ));
   });
 }