cleanup pass

src/main.rs

@@ -3,7 +3,7 @@
 
 mod utils;
 
-use bevy::window::{ClosingWindow, WindowResolution};
+use bevy::window::WindowResolution;
 use bevy::{prelude::*, window::WindowCloseRequested};
 use helpers::grid::{Flag, GridPlugin, Revealed, Tile, TileClickEvent, TileOffset, TileType};
 use serde::{Deserialize, Serialize};