Cleanup and format

src/data_provider/decks.rs

@@ -1,11 +1,7 @@
 use crate::core::srs::OrderMode;
-use crate::data::Id;
 use crate::data::entities::DeckSettings;
 use crate::notification::NotificationData::{DbLoadError, DbSaveError};
 use crate::notification::{MaybeError, NotificationData};
-use chrono::{Datelike, Local, NaiveDate};
-use fsrs::Card;
-use iced::futures::StreamExt;
 use rusqlite::Connection;
 
 pub fn load_sets(connection: &Connection) -> Result<Vec<DeckSettings>, NotificationData> {