Fix deck data

src/app.rs

@@ -11,7 +11,7 @@ use iced_core::window::Position;
 use iced_core::window::settings::PlatformSpecific;
 use iced_core::{Font, Size, Theme};
 use log::info;
-use parking_lot::RwLock;
+use parking_lot::{Mutex, RwLock};
 use rusqlite::Connection;
 use crate::data::repositories::Repository;
 use crate::data_provider::card_states::CardStateRepository;
@@ -65,7 +65,7 @@ pub struct AppState {
     pub decks: DeckRepository,
     pub word_groups: WordGroupRepository,
     pub card_states: CardStateRepository,
-    pub connection: Arc<RwLock<SqliteConnection>>,
+    pub connection: Arc<Mutex<SqliteConnection>>,
     pub sync_data: Arc<RwLock<AppSettings>>,
     pub history: HistoryRepository,
 }
@@ -78,7 +78,7 @@ impl Default for AppState {
 
 impl AppState {
     pub fn new() -> Self {
-        let connection = Arc::new(RwLock::new(SqliteConnection::default()));
+        let connection = Arc::new(Mutex::new(SqliteConnection::default()));
         Self {
             dictionary: WordRepository::new(connection.clone()),
             decks: DeckRepository::new(connection.clone()),
@@ -95,7 +95,7 @@ impl AppState {
 }
 
 pub fn fill_state(state: &mut AppState) {
-    let connection = state.connection.read();
+    let connection = state.connection.lock();
 
     let setting = load_settings(&connection);