Full split of lang.rs

src/pages/import.rs

@@ -1,7 +1,7 @@
 use crate::data_provider::import::{ImportData, ImportGroup, get_words_of_group, load_groups};
 use crate::data_provider::words::{add_group, add_words};
 use crate::pages::import::ImportMessage::*;
-use crate::lang::{WordData, WordGroup};
+use crate::data::entities::{WordData, WordGroup};
 use crate::navigation::{NavigatedPage, Page, RootMessage};
 use crate::notification::NotificationData::OpenFileError;
 use crate::notification::{NotificationData, NotificationRequest};