feat: init desktop app

apps/desktop/src/main.rs

@@ -0,0 +1,41 @@
+use gpui::{
+    App, Application, Bounds, Context, SharedString, Window, WindowBounds, WindowOptions, div,
+    prelude::*, px, rgb, size,
+};
+
+struct AppWindow {
+    title: SharedString,
+}
+
+impl Render for AppWindow {
+    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
+        div()
+            .size_full()
+            .bg(rgb(0x0f0f0f))
+            .flex()
+            .justify_center()
+            .items_center()
+            .text_xl()
+            .text_color(rgb(0xffffff))
+            .child(self.title.clone())
+    }
+}
+
+fn main() {
+    Application::new().run(|cx: &mut App| {
+        let bounds = Bounds::centered(None, size(px(1280.), px(720.)), cx);
+        cx.open_window(
+            WindowOptions {
+                window_bounds: Some(WindowBounds::Windowed(bounds)),
+                ..Default::default()
+            },
+            |_, cx| {
+                cx.new(|_| AppWindow {
+                    title: "OpenCut".into(),
+                })
+            },
+        )
+        .unwrap();
+        cx.activate(true);
+    });
+}