Rerwite everything to share an egui context

src/window/input.rs

@@ -1,4 +1,4 @@
-use egui::{Button, CentralPanel, Label, Layout, Panel, Ui, ViewportBuilder, ViewportId};
+use egui::{Button, CentralPanel, Label, Layout, Panel, Ui, ViewportBuilder};
 use egui_extras::{Column, TableBuilder};
 use gilrs::{EventType, GamepadId};
 use std::sync::RwLock;
@@ -160,10 +160,6 @@ impl InputWindow {
 }
 
 impl AppWindow for InputWindow {
-    fn viewport_id(&self) -> ViewportId {
-        ViewportId::from_hash_of("input")
-    }
-
     fn initial_viewport(&self) -> ViewportBuilder {
         ViewportBuilder::default()
             .with_title("Bind Inputs")