⚡ Add Livewire config, update composer dependencies, and enhance Blade layouts

- Introduced `livewire/livewire` v4 dependency.
- Added `config/livewire.php` for Livewire customization.
- Adjusted `login.blade.php` language fallback logic for session handling.
- Created new Blade layouts (`error.blade.php`, `auth.blade.php`, `app.blade.php`) for unified component architecture.

resources/views/layouts/app.blade.php

@@ -0,0 +1,5 @@
+<x-layouts.app.sidebar :title="$title ?? null">
+    <flux:main>
+        {{ $slot }}
+    </flux:main>
+</x-layouts.app.sidebar>