More notifications and move start code to another file

src/selector.rs

@@ -1,14 +1,13 @@
 use crate::dictionary::DictionaryState;
 use crate::lang::{KanaSet, KanaType};
 use crate::navigation::Page::*;
-use crate::navigation::{NavigatedPage, Page};
+use crate::navigation::{NavigatedPage, Page, RootMessage};
 use crate::randomizer::RandomizerState;
 use crate::repetitions::RepetitionsState;
 use crate::selector::SelectorMessage::ChangeMode;
 use crate::styling::*;
 use crate::sync::SyncState;
 use crate::writing::WritingState;
-use crate::{AppState, QuizState, RootMessage};
 use iced::widget::button::{Status, Style};
 use iced::widget::*;
 use iced::{Element, Task, alignment};
@@ -17,6 +16,8 @@ use iced_core::Background;
 use iced_core::Color;
 use parking_lot::Mutex;
 use std::sync::Arc;
+use crate::app::AppState;
+use crate::quiz::QuizState;
 
 pub struct SelectorState {
     pub set: KanaSet,