refactored bang search, added search with bang to title

app/lib/features/bangs/domain/providers.dart

@@ -19,9 +19,26 @@ Stream<BangData?> kagiSearchBangData(KagiSearchBangDataRef ref) {
 }
 
 @Riverpod()
-Stream<List<BangData>> bangDataList(BangDataListRef ref) {
+Stream<Map<String, List<String>>> bangCategories(BangCategoriesRef ref) {
   final repository = ref.watch(bangDataRepositoryProvider.notifier);
-  return repository.watchBangs();
+  return repository.watchCategories();
+}
+
+@Riverpod()
+Stream<List<BangData>> bangDataList(
+  BangDataListRef ref, {
+  ({
+    Iterable<BangGroup>? groups,
+    String? domain,
+    ({String category, String? subCategory})? categoryFilter,
+  })? filter,
+}) {
+  final repository = ref.watch(bangDataRepositoryProvider.notifier);
+  return repository.watchBangs(
+    groups: filter?.groups,
+    domain: filter?.domain,
+    categoryFilter: filter?.categoryFilter,
+  );
 }
 
 @Riverpod()

app/lib/features/bangs/domain/repositories/bang_data.dart

@@ -31,8 +31,19 @@ class BangDataRepository extends _$BangDataRepository {
     return _db.bangDao.getBangCount(groups: [group]).watchSingle();
   }
 
-  Stream<List<BangData>> watchBangs({Iterable<BangGroup>? groups}) {
-    return _db.bangDao.getBangDataList(groups: groups).watch();
+  Stream<List<BangData>> watchBangs({
+    Iterable<BangGroup>? groups,
+    String? domain,
+    ({String category, String? subCategory})? categoryFilter,
+  }) {
+    return _db.bangDao
+        .getBangDataList(
+          groups: groups,
+          domain: domain,
+          category: categoryFilter?.category,
+          subCategory: categoryFilter?.subCategory,
+        )
+        .watch();
   }
 
   Stream<List<BangData>> watchFrequentBangs({Iterable<BangGroup>? groups}) {