Upgrade documentation to Lazy UI 2.x

[CrazyBoy49z]

Summary

• migrate the docs app to Laravel 12 and Livewire 4.4
• target step2dev/lazy-ui:dev-2.x-dev
• migrate the frontend to Tailwind CSS 4 and daisyUI 5
• replace the old SCSS/Tailwind config pipeline with CSS-first Tailwind 4
• rebuild the documentation layout, navigation, landing page, and theme switcher integration
• add Getting Started, 1.x → 2.x Upgrade, Themes, and Livewire guides
• document the full registered Lazy UI component catalog, including helpers, form components, mockups, widgets, and compatibility components
• add copy-ready Blade examples and safe live previews
• regenerate Composer and npm lock files
• add CI that installs dependencies, builds assets, and runs the docs test suite

Compatibility

• PHP 8.2+
• Laravel 12
• Livewire 4.4+
• Tailwind CSS 4
• daisyUI 5
• Lazy UI 2.x-dev