Add a keyboard-driven project setup flow (#2097)

* feat(projects): add keyboard-driven project setup

* test(app): update add project loading assertion

* fix(projects): harden GitHub project setup

packages/app/src/desktop/host.ts

@@ -24,6 +24,7 @@ export interface DesktopDialogOpenOptions {
   title?: string;
   defaultPath?: string;
   directory?: boolean;
+  createDirectory?: boolean;
   multiple?: boolean;
   filters?: Array<{
     name: string;