Add support for ready-made page designs compatible with Nuxt UI and Shadcn Vue

[productdevbook]

Provide ready-made page designs that can be used with design systems of both structures in the ecosystem. The user can turn this off in the settings if they wish.

• https://demo.better-auth.com/
• https://github.com/better-auth/better-auth/tree/main/demo/nextjs

Nuxt UI supported components and pages

• [ ]

Shadcn Vue supported components and pages

• [ ]

[productdevbook]

Would it be better if we just split it into 2 parts as tailwindcss v4 and pure css, customization etc. I don't know exactly how to make it easy. Nuxt UI and shadcn maybe should not be used.

[fayazara]

Yes, or we just dont make this a part of the module. Let the user handle UI. We provide utils and composables

[cwandev]

I believe the module should stay lightweight and focus solely on integrating Nuxt with Auth. UI implementation should be left to users, as bundling UI components would introduce unnecessary maintenance due to the wide variety of available options.

[productdevbook]

We need a solution that offers a quick start for user management, sessions, and admin panel setup in our https://demo.better-auth.com/. Ideally, users should be able to integrate it directly into their projects if they wish. Setting these up from scratch in every project is incredibly time-consuming.