Migrate all configs into the env.php file #1075 (#1128)

* Migrate all configs into the env.php file #1075

* Style fixes

* Fix config names in CreateConfig

* Fix installer/installer error messages

app/Database/migrations/2021_04_10_055245_migrate_configs.php

@@ -0,0 +1,21 @@
+<?php
+
+use App\Contracts\Migration;
+use App\Services\Installer\ConfigService;
+
+/**
+ * Migrate the configuration files
+ */
+class MigrateConfigs extends Migration
+{
+    public function up()
+    {
+        /** @var ConfigService $configSvc */
+        $configSvc = app(ConfigService::class);
+        $configSvc->rewriteConfigFiles();
+    }
+
+    public function down()
+    {
+    }
+}