fix closing search dropdown (#1142)

* using a different library for javascript selects, fixing the closing search dropdown
* fix closing dropdown for daterangepicker
* added missing search button for mobile on customer page
* fix meta fields with same names than existing columns

tests/Event/SystemConfigurationEventTest.php

@@ -0,0 +1,37 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Tests\Event;
+
+use App\Entity\Configuration;
+use App\Event\SystemConfigurationEvent;
+use App\Form\Model\SystemConfiguration;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \App\Event\SystemConfigurationEvent
+ */
+class SystemConfigurationEventTest extends TestCase
+{
+    public function testDefaultValues()
+    {
+        $sut = new SystemConfigurationEvent([]);
+        self::assertIsArray($sut->getConfigurations());
+        self::assertEmpty($sut->getConfigurations());
+        self::assertInstanceOf(SystemConfigurationEvent::class, $sut->addConfiguration(new SystemConfiguration()));
+        self::assertCount(1, $sut->getConfigurations());
+
+        $config = new Configuration();
+        $config->setName('foo')->setValue('bar');
+        $sysConfig = new SystemConfiguration();
+        $sysConfig->setConfiguration([$config]);
+        $sut = new SystemConfigurationEvent([$sysConfig]);
+        self::assertEquals([$sysConfig], $sut->getConfigurations());
+    }
+}