[feat]: add multiple styles to mode toggle component

[alieldeba]

Feature description

I really hate the styles of the current mode toggle in shadcn website I think it would be better if you add more styles like this

Affected component/components

ModeToggle

Additional Context

Just modify this page to include more ModeToggle component styles: https://ui.shadcn.com/docs/dark-mode/next

Before submitting

• I've made research efforts and searched the documentation
• I've searched for existing issues and PRs

[alieldeba]

I think this is a very helpful feature that users will love @shadcn