More notifications and move start code to another file

src/navigation.rs

@@ -22,7 +22,7 @@ use crate::sync::{SyncMessage, SyncState};
 use crate::view_navigation;
 use crate::word::{WordMessage, WordState};
 use crate::writing::{WritingMessage, WritingState};
-use crate::{fill_state, AppState};
+use crate::app::{fill_state, AppState};
 use chrono::NaiveDate;
 use hashbrown::HashMap;
 use iced::keyboard::Event;