🌍 Add Top-Countries, Top-Meetups, and Activities dashboard components

- Introduced three new Livewire components for the dashboard:
  - Top Countries: Displays countries with the most users.
  - Top Meetups: Highlights meetups with the largest user counts.
  - Activities: Showcases recent meetups and events.
- Updated `dashboard.blade.php` to lazy-load these components.
- Expanded multilingual support for relevant labels across all languages.

resources/views/livewire/dashboard/top-meetups.blade.php

@@ -0,0 +1,112 @@
+<?php
+
+use App\Models\Meetup;
+use Livewire\Attributes\Lazy;
+use Livewire\Volt\Component;
+
+new
+#[Lazy]
+class extends Component {
+    public function with(): array
+    {
+        // Top Meetups - Meetups mit den meisten Usern
+        $topMeetups = Meetup::withCount('users')
+            ->with(['city.country'])
+            ->orderBy('users_count', 'desc')
+            ->limit(10)
+            ->get()
+            ->map(function ($meetup) {
+                // Optimierte Query: Hole alle User-Erstellungsdaten für dieses Meetup auf einmal
+                $userCreationDates = \DB::table('users')
+                    ->join('meetup_user', 'users.id', '=', 'meetup_user.user_id')
+                    ->where('meetup_user.meetup_id', $meetup->id)
+                    ->whereNotNull('users.created_at')
+                    ->orderBy('users.created_at')
+                    ->pluck('users.created_at')
+                    ->unique()
+                    ->values();
+
+                if ($userCreationDates->isEmpty()) {
+                    $meetup->sparkline = [0];
+                    return $meetup;
+                }
+
+                // Berechne monatliche Buckets für kumulative Zählung
+                $startDate = \Carbon\Carbon::parse($userCreationDates->first())->startOfMonth();
+                $endDate = now()->endOfMonth();
+                $monthsDiff = max(1, $startDate->diffInMonths($endDate));
+                $interval = max(1, ceil($monthsDiff / 12));
+
+                // Generiere 12 Zeitpunkte
+                $sparklineData = [];
+                $currentDate = $startDate->copy();
+
+                for ($i = 0; $i < 12 && $currentDate <= $endDate; $i++) {
+                    // Zähle kumulative User bis zu diesem Zeitpunkt
+                    $count = $userCreationDates->filter(function ($date) use ($currentDate) {
+                        return \Carbon\Carbon::parse($date) <= $currentDate;
+                    })->count();
+
+                    $sparklineData[] = $count;
+                    $currentDate->addMonths($interval);
+                }
+
+                $meetup->sparkline = $sparklineData;
+                return $meetup;
+            });
+
+        return [
+            'topMeetups' => $topMeetups,
+        ];
+    }
+
+    public function placeholder(): string
+    {
+        return <<<'HTML'
+        <div class="relative overflow-hidden rounded-xl border border-neutral-200 dark:border-neutral-700">
+            <div class="p-6">
+                <flux:heading size="lg" class="mb-4">{{ __('Top Meetups') }}</flux:heading>
+                <flux:text class="text-sm text-zinc-500 mb-4">{{ __('Meetups mit den meisten Usern') }}</flux:text>
+                <flux:separator class="my-4"/>
+                <div class="flex items-center justify-center py-8">
+                    <flux:icon.arrow-path class="animate-spin size-6 text-zinc-400" />
+                </div>
+            </div>
+        </div>
+        HTML;
+    }
+}; ?>
+
+<div class="relative overflow-hidden rounded-xl border border-neutral-200 dark:border-neutral-700">
+    <div class="p-6">
+        <flux:heading size="lg" class="mb-4">{{ __('Top Meetups') }}</flux:heading>
+        <flux:text class="text-sm text-zinc-500 mb-4">{{ __('Meetups mit den meisten Usern') }}</flux:text>
+
+        @if($topMeetups->count() > 0)
+            <flux:separator class="my-4"/>
+            <div class="space-y-3">
+                @foreach($topMeetups as $meetup)
+                    <a href="{{ route('meetups.landingpage', ['meetup' => $meetup, 'country' => $meetup->city->country->code]) }}"
+                       class="flex items-center justify-between gap-3 p-2 hover:bg-zinc-50 dark:hover:bg-zinc-800 rounded-lg transition-colors block">
+                        <div class="flex items-center gap-3 flex-1">
+                            <flux:avatar
+                                size="sm"
+                                src="{{ $meetup->getFirstMedia('logo') ? $meetup->getFirstMediaUrl('logo', 'thumb') : asset('android-chrome-512x512.png') }}"/>
+                            <div class="flex-1">
+                                <div class="font-medium">{{ $meetup->name }}</div>
+                                <div class="text-xs text-zinc-500">{{ $meetup->users_count }} {{ __('User') }}</div>
+                            </div>
+                        </div>
+                        <flux:chart :value="$meetup->sparkline" class="w-[5rem] aspect-[3/1]">
+                            <flux:chart.svg gutter="0">
+                                <flux:chart.line class="text-green-500 dark:text-green-400" />
+                            </flux:chart.svg>
+                        </flux:chart>
+                    </a>
+                @endforeach
+            </div>
+        @else
+            <div class="text-sm text-zinc-500">{{ __('Keine Daten verfügbar') }}</div>
+        @endif
+    </div>
+</div>