feat: update book title & content not be shorten

src/components/IntroArea/index.tsx

src/components/IntroArea/style.ts

src/components/ScrollArea/index.tsx

src/components/ScrollArea/style.ts

src/components/TextArea/index.tsx

src/components/TextArea/style.ts

src/hooks/useBookInfo.ts

src/hooks/useScrollState.ts