Partial AppState rewrite

src/pages/repetition_settings.rs

@@ -21,14 +21,14 @@ use std::time::Duration;
 pub struct RepetitionSettingsState {
     set: DeckSettings,
     index: usize,
-    state: Arc<Mutex<AppState>>,
+    state: AppState,
     real_delete: bool,
     correct_filter: bool,
     filter_changed: bool,
 }
 
 impl RepetitionSettingsState {
-    pub(crate) fn new(index: usize, state: Arc<Mutex<AppState>>) -> RepetitionSettingsState {
+    pub(crate) fn new(index: usize, state: AppState) -> RepetitionSettingsState {
         let set;
         {
             let local_state = state.lock();