fix: add onboarding entry (#7375)

Don't know why it's missed..
https://github.com/toeverything/AFFiNE/pull/7109

packages/frontend/core/src/components/blocksuite/block-suite-editor/ai/setup-provider.tsx

@@ -1,6 +1,7 @@
 import { notify } from '@affine/component';
 import { authAtom, openSettingModalAtom } from '@affine/core/atoms';
 import { AIProvider } from '@affine/core/blocksuite/presets/ai';
+import { toggleGeneralAIOnboarding } from '@affine/core/components/affine/ai-onboarding/apis';
 import { mixpanel } from '@affine/core/utils';
 import { getBaseUrl } from '@affine/graphql';
 import { Trans } from '@affine/i18n';
@@ -398,6 +399,8 @@ Could you make a new website based on these notes and send back just the html fi
     },
   });
 
+  AIProvider.provide('onboarding', toggleGeneralAIOnboarding);
+
   AIProvider.slots.requestUpgradePlan.on(() => {
     getCurrentStore().set(openSettingModalAtom, {
       activeTab: 'billing',