synced with last dev, added profiles for cyr2lat replacement dictionaries

lib/services/app_settings_service.dart

@@ -260,4 +260,56 @@ class AppSettingsService extends ChangeNotifier {
       _settings.copyWith(translationDownloadedModels: value),
     );
   }
+
+  Cyr2LatProfile getSelectedCyr2LatProfile() {
+    return _settings.cyr2latProfiles.firstWhere(
+      (p) => p.id == _settings.selectedCyr2latProfileId,
+      orElse: () => _settings.cyr2latProfiles.first,
+    );
+  }
+
+  Cyr2LatProfile? getCyr2LatProfileById(String profileId) {
+    return _settings.cyr2latProfiles.cast<Cyr2LatProfile?>().firstWhere(
+      (p) => p?.id == profileId,
+      orElse: () => null,
+    );
+  }
+
+  Future<void> setSelectedCyr2LatProfile(String profileId) async {
+    await updateSettings(
+      _settings.copyWith(selectedCyr2latProfileId: profileId),
+    );
+  }
+
+  Future<void> addCyr2LatProfile(Cyr2LatProfile profile) async {
+    final updated = List<Cyr2LatProfile>.from(_settings.cyr2latProfiles)
+      ..add(profile);
+    await updateSettings(_settings.copyWith(cyr2latProfiles: updated));
+  }
+
+  Future<void> updateCyr2LatProfile(Cyr2LatProfile updatedProfile) async {
+    final updated = _settings.cyr2latProfiles
+        .map((p) => p.id == updatedProfile.id ? updatedProfile : p)
+        .toList();
+    await updateSettings(_settings.copyWith(cyr2latProfiles: updated));
+  }
+
+  Future<void> removeCyr2LatProfile(String profileId) async {
+    if (_settings.cyr2latProfiles.length <= 1) {
+      return; // Don't remove the last profile
+    }
+    final updated = _settings.cyr2latProfiles
+        .where((p) => p.id != profileId)
+        .toList();
+    var newSelectedId = _settings.selectedCyr2latProfileId;
+    if (newSelectedId == profileId) {
+      newSelectedId = updated.first.id;
+    }
+    await updateSettings(
+      _settings.copyWith(
+        cyr2latProfiles: updated,
+        selectedCyr2latProfileId: newSelectedId,
+      ),
+    );
+  }
 }