Clean up client API

- Don't use "any" for the API type.
- Remove everything from the Coder API that can eventually be done
  through the VS Code API.
- Move the event emission to our own client to minimize patching.

src/client.ts

@@ -1 +1,18 @@
-import 'vs/css!./media/firefox';
+import { coderApi, vscodeApi } from "vs/server/src/api";
+import "vs/css!./media/firefox";
+import { ServiceCollection } from "vs/platform/instantiation/common/serviceCollection";
+
+/**
+ * This is called by vs/workbench/browser/web.main.ts after the workbench has
+ * been initialized so we can initialize our own client-side code.
+ */
+export const initialize = (services: ServiceCollection): void => {
+	const target = window as any;
+	target.ide = coderApi(services);
+	target.vscode = vscodeApi(services);
+
+	const event = new CustomEvent('ide-ready');
+	(event as any).ide = target.ide;
+	(event as any).vscode = target.vscode;
+	window.dispatchEvent(event);
+};