feat(dependencies): add rxdart package and improve string extension methods for better handling of empty strings and gender parsing

lib/features/registration/presentation/bloc/verify_email_cubit/verify_email_cubit.dart

@@ -23,8 +23,12 @@ class VerifyEmailCubit extends Cubit<VerifyEmailState> {
       emit(const VerifyEmailState.verifyLoading());
       final result = await profileRepository.tryVerifyEmailByCode(code);
       if (result == true) {
-        RegistrationAnalyticsService.reportEmailVerification();
         emit(const VerifyEmailState.verifySuccess());
+        try {
+          RegistrationAnalyticsService.reportEmailVerification();
+        } catch (e) {
+          // Игнорируем ошибки аналитики, верификация уже успешна
+        }
       } else {
         emit(const VerifyEmailState.verifyError());
       }