Add anki21 format and fix multi import bug

src/main.rs

@@ -16,15 +16,15 @@ mod word;
 mod writing;
 mod repetition_settings;
 pub mod import;
+pub mod helpers;
 
 use crate::data_provider::card_sets::load_sets;
 use crate::data_provider::settings::get_setting;
 use crate::data_provider::sqlite::default_connection;
 use crate::data_provider::words::{load_word_groups, load_words};
-use crate::lang::{WordData, WordGroup};
+use crate::lang::{CardSetSettings, WordData, WordGroup};
 use crate::navigation::{AppSettings, RootMessage, ScreenState};
 use crate::quiz::*;
-use crate::repetitions::CardSetSettings;
 use crate::RootMessage::Keyboard;
 use chrono::NaiveDate;
 use iced::{keyboard, Subscription, Theme};