test(core): edgeless shape e2e (#11446)

### TL;DR

Add Edgeless shape ai e2e tests.

### What Changed

- Add Edgeless shape make it real e2e
- Add Edgeless shape generate image e2e
- Fix Edgeless generate headings e2e

tests/affine-cloud-copilot/e2e/chat-with/edgeless-shape.spec.ts

@@ -1,3 +0,0 @@
-import { test } from '../base/base-test';
-
-test.describe('AIChatWith/EdgelessShape', () => {});