Rerwite everything to share an egui context

src/window/profile.rs

@@ -1,7 +1,7 @@
 use std::{fs, sync::Arc, time::Duration};
 
 use anyhow::Result;
-use egui::{Button, CentralPanel, Checkbox, Label, ViewportBuilder, ViewportId};
+use egui::{Button, CentralPanel, Checkbox, Label, ViewportBuilder};
 use egui_notify::{Anchor, Toast, Toasts};
 use winit::window::Window;
 
@@ -82,10 +82,6 @@ impl ProfileWindow {
 }
 
 impl AppWindow for ProfileWindow {
-    fn viewport_id(&self) -> ViewportId {
-        ViewportId::from_hash_of(format!("Profile-{}", self.sim_id))
-    }
-
     fn sim_id(&self) -> SimId {
         self.sim_id
     }