fix(core): copilot client should throw right ai error (#9958)

[BS-2488](https://linear.app/affine-design/issue/BS-2488/copilot-client-需要正确返回错误类型)

packages/frontend/core/src/blocksuite/presets/_common/components/text-renderer.ts

@@ -100,6 +100,7 @@ export class TextRenderer extends WithDisposable(ShadowlessElement) {
 
     .ai-answer-text-editor .affine-page-root-block-container {
       padding: 0;
+      margin: 0;
       line-height: var(--affine-line-height);
       color: var(--affine-text-primary-color);
       font-weight: 400;