refactor(storybook): move to apps folder (#2901)

apps/storybook/src/stories/onboarding-modal.stories.tsx

@@ -0,0 +1,15 @@
+/* deepscan-disable USELESS_ARROW_FUNC_BIND */
+import { TourModal } from '@affine/component/tour-modal';
+import type { StoryFn } from '@storybook/react';
+
+export default {
+  title: 'AFFiNE/TourModal',
+  component: TourModal,
+};
+
+export const Basic: StoryFn = () => {
+  return <TourModal open={true} onClose={() => {}} />;
+};
+Basic.args = {
+  logoSrc: '/imgs/affine-text-logo.png',
+};