feat: setup wizard shell

src/main.rs

@@ -1,5 +1,7 @@
 use gpui::{bounds, point, prelude::*, px, size};
 
+use crate::screen::welcome;
+
 mod api;
 mod app;
 mod asset;
@@ -12,6 +14,14 @@ mod theme;
 mod titlebar;
 
 fn main() {
+    // GPUI polls our async query futures, but reqwest relies on Tokio's
+    // reactor and blocking pool for DNS, sockets, and timers.
+    let runtime = tokio::runtime::Builder::new_multi_thread()
+        .enable_all()
+        .build()
+        .expect("failed to build Tokio runtime");
+    let _runtime_guard = runtime.enter();
+
     gpui::Application::new()
         .with_assets(asset::Asset)
         .run(setup_application);
@@ -48,9 +58,10 @@ fn setup_application(cx: &mut gpui::App) {
                 traffic_light_position: Some(top_left + point(px(12.), px(12.))),
                 ..Default::default()
             }),
+            is_resizable: false,
             ..Default::default()
         },
-        |window, cx| cx.new(|cx| app::Chrome::new(window, cx)),
+        |window, cx| cx.new(|cx| welcome::Screen::new(cx)),
     )
     .unwrap();
 }