remove tests, tests are for losers

lib/src/screens/home_screen.dart

@@ -19,7 +19,9 @@ class _ReadingInfo {
 }
 
 class HomeScreen extends StatefulWidget {
-  const HomeScreen({super.key});
+  const HomeScreen({super.key, this.distractorGenerator});
+
+  final DistractorGenerator? distractorGenerator;
 
   @override
   State<HomeScreen> createState() => _HomeScreenState();
@@ -29,7 +31,7 @@ class _HomeScreenState extends State<HomeScreen> {
   List<KanjiItem> _deck = [];
   bool _loading = false;
   String _status = 'Loading deck...';
-  final DistractorGenerator _dg = DistractorGenerator();
+  late final DistractorGenerator _dg;
   final Random _random = Random();
   final _audioPlayer = AudioPlayer();
 
@@ -45,6 +47,7 @@ class _HomeScreenState extends State<HomeScreen> {
   @override
   void initState() {
     super.initState();
+    _dg = widget.distractorGenerator ?? DistractorGenerator();
     _loadSettings();
     _loadDeck();
   }
@@ -121,6 +124,9 @@ class _HomeScreenState extends State<HomeScreen> {
   }
 
   void _nextQuestion() {
+    print('deck size: ${_deck.length}');
+    if (_deck.isEmpty) return;
+
     _deck.sort((a, b) {
       String srsKey(KanjiItem item) {
         var key = _mode.toString();
@@ -159,6 +165,7 @@ class _HomeScreenState extends State<HomeScreen> {
     });
 
     _current = _deck.first;
+    print('current: ${_current?.characters}');
 
     _correctAnswers = [];
     _options = [];
@@ -204,6 +211,9 @@ class _HomeScreenState extends State<HomeScreen> {
         break;
     }
 
+    print('options: $_options');
+    print('correctAnswers: $_correctAnswers');
+
     setState(() {});
   }