Filter for navigation items in FilamentPHP

AdminPanelProvider.php

<?php

namespace App\Providers\Filament;

use Filament\Panel;
use Filament\View\PanelsRenderHook;
use Illuminate\Support\Facades\Blade;

public function panel(Panel $panel): Panel
{
    return $panel
        // ...
        ->renderHook(PanelsRenderHook::SIDEBAR_NAV_START, fn () => view('filament.components.navigation-filter'));
}

navigation-filter.blade.php

<div class=""
    @if (filament()->isSidebarCollapsibleOnDesktop())
        x-bind:class="$store.sidebar.isOpen ? 'block' : 'hidden'"
    @endif
>
    <x-filament::input.wrapper class="relative">
        <span class="absolute left-1 top-1/2 transform -translate-y-1/2 text-gray-600 dark:text-gray-400 dark:border-gray-600 text-xs px-2 flex items-center justify-center gap-1 py-1 rounded">
            <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="h-4 w-4">
                <path stroke-linecap="round" stroke-linejoin="round" d="m21 21-5.197-5.197m0 0A7.5 7.5 0 1 0 5.196 5.196a7.5 7.5 0 0 0 10.607 10.607Z" />
            </svg>
        </span>

        <x-filament::input
            type="text"
            placeholder="Menüde ara..."
            x-data="sidebarSearch()"
            x-ref="search"
            x-on:input.debounce.300ms="filterItems($event.target.value)"
            x-on:keydown.escape="clearSearch"
            x-on:keydown.meta.j.prevent.document="$refs.search.focus()"
            inline-suffix=""
            class="!pr-14 !pl-10"
        />

        <kbd class="absolute right-2 top-1/2 transform -translate-y-1/2 bg-gray-100 border border-gray-300 text-gray-600 dark:bg-gray-800 dark:border-gray-600 dark:text-gray-50 text-xs px-2 flex items-center justify-center gap-1 py-1 rounded">
            <svg class="h-3 w-3" xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M15 6v12a3 3 0 1 0 3-3H6a3 3 0 1 0 3 3V6a3 3 0 1 0-3 3h12a3 3 0 1 0-3-3"/></svg>
            <kd>J</kd>
        </kbd>
    </x-filament::input.wrapper>

    <script>
        document.addEventListener('alpine:init', () => {
            Alpine.data('sidebarSearch', () => ({
                init() {
                    this.$refs.search.value = ''
                },

                filterItems(searchTerm) {
                    const groups = document.querySelectorAll('.fi-sidebar-nav-groups .fi-sidebar-group')
                    searchTerm = searchTerm.toLowerCase()

                    groups.forEach(group => {
                        const groupButton = group.querySelector('.fi-sidebar-group-button')
                        const groupText = groupButton?.textContent.toLowerCase() || ''
                        const items = group.querySelectorAll('.fi-sidebar-item')
                        let hasVisibleItems = false

                        const groupMatches = groupText.includes(searchTerm)

                        items.forEach(item => {
                            const itemText = item.textContent.toLowerCase()
                            const isVisible = itemText.includes(searchTerm) || groupMatches

                            item.style.display = isVisible ? '' : 'none'
                            if (isVisible) hasVisibleItems = true
                        })

                        group.style.display = (hasVisibleItems || groupMatches) ? '' : 'none'
                    })
                },

                clearSearch() {
                    this.$refs.search.value = ''
                    this.filterItems('')
                }
            }))
        })
    </script>
</div>

And don't forget to run npm run build command.