add custom dock

desktop/Cargo.toml

@@ -19,6 +19,7 @@ gpui_platform.workspace = true
 gpui_linux.workspace = true
 gpui_windows.workspace = true
 gpui_macos.workspace = true
+dock = { workspace = true }
 gpui-component.workspace = true
 reqwest_client.workspace = true
 log.workspace = true

desktop/src/main.rs

@@ -19,6 +19,10 @@ fn main() {
             // Initialize components
             gpui_component::init(cx);
 
+            // Initialize the dock (registers the panel registry used to
+            // deserialize persisted layouts).
+            dock::init(cx);
+
             // Initialize theme
             theme::init(cx);