Added timezone for user; Moved dashboard to controller

tests/Unit/Service/TimezoneServiceTest.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit\Service;
+
+use Tests\TestCase;
+
+class TimezoneServiceTest extends TestCase
+{
+    public function test_get_timezones_returns_all_available_timezones(): void
+    {
+        // Arrange
+        $service = new \App\Service\TimezoneService();
+
+        // Act
+        $result = $service->getTimezones();
+
+        // Assert
+        $this->assertIsArray($result);
+        $this->assertCount(419, $result);
+        $this->assertContains('Europe/Vienna', $result);
+        $this->assertContains('Europe/Berlin', $result);
+        $this->assertContains('Europe/London', $result);
+    }
+}