feat: adds step to define filter in getting started process

src/User/Database/ProviderList.php

@@ -23,4 +23,13 @@ class ProviderList
     {
         return self::$providers;
     }
+
+    public static function asSelectOptions(): array
+    {
+        $result = [];
+        foreach (static::$providers as $provider) {
+            $result[$provider] = $provider;
+        }
+        return $result;
+    }
 }