WIP: Log close event

Author: pimterry

test/smoke.spec.ts

@@ -24,6 +24,10 @@ test('app launches and loads UI from server', async () => {
     await expect(window.locator('h1:has-text("Intercept HTTP")')).toBeVisible({ timeout: 60000 });
     console.log('saw title');
 
+    electronApp.on('close', () => {
+        console.log('electron app close event');
+    });
+
     await electronApp.close();
     console.log('closed app');
 });