feat: select between HTML and shadcn components

create-app.ts

index.ts

templates/index.ts

templates/simple/nextjs/app/components/chat-section.tsx

templates/simple/nextjs/app/globals.css

templates/simple/nextjs/tailwind.config.ts

templates/streaming/nextjs/app/components/chat-section.tsx

templates/streaming/nextjs/app/components/ui/chat-input.tsx

templates/streaming/nextjs/app/components/ui/chat-item.tsx

templates/streaming/nextjs/app/globals.css

templates/streaming/nextjs/tailwind.config.ts

templates/types.ts

templates/ui/html/chat/chat-avatar.tsx

templates/ui/html/chat/chat-input.tsx

templates/ui/html/chat/chat-item.tsx

templates/ui/html/chat/chat-messages.tsx

templates/ui/html/chat/index.ts

templates/ui/shadcn/button.tsx

templates/ui/shadcn/chat/chat-avatar.tsx

templates/ui/shadcn/chat/chat-input.tsx