Export and Import vito settings (#606)

* Export and Import vito settings

* fix tests

tests/Feature/VitoSettingsTest.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Feature;
+
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class VitoSettingsTest extends TestCase
+{
+    use RefreshDatabase;
+
+    public function test_export_settings(): void
+    {
+        $this->actingAs($this->user);
+
+        $this->get(route('vito-settings.export'))
+            ->assertDownload('vito-backup-'.date('Y-m-d').'.zip');
+    }
+}