Update egui

src/window.rs

@@ -1,7 +1,7 @@
 use std::sync::Arc;
 
 pub use about::AboutWindow;
-use egui::{Context, ViewportBuilder, ViewportId};
+use egui::{Context, Ui, ViewportBuilder, ViewportId};
 pub use game::GameWindow;
 pub use game_screen::DisplayMode;
 pub use gdb::GdbServerWindow;
@@ -33,7 +33,7 @@ pub trait AppWindow {
         SimId::Player1
     }
     fn initial_viewport(&self) -> ViewportBuilder;
-    fn show(&mut self, ctx: &Context);
+    fn show(&mut self, ui: &mut Ui);
     fn on_init(&mut self, args: InitArgs) {
         let _ = args;
     }