Feat: added Alchemer survey preset (#191)

* Feat: added Alchemer survey preset

* preset added to test

* feat: add Alchemer CSP preset snapshot

---------

Co-authored-by: Freek Van der Herten <freek@spatie.be>

Author: chinmaypurav

README.md

@@ -157,6 +157,7 @@ This package ships with a few commonly used presets to get your started. *We're
 |----------------------------|---------------------------------------------------------------------------------------|
 | `Basic`                    | Allow requests to scripts, images… within the application                             |
 | `AdobeFonts`               | [fonts.adobe.com](https://fonts.adobe.com) (previously typekit.com)                   |
+| `Alchemer Survey`          | [alchemer.com](https://www.alchemer.com)                                                |
 | `Algolia`                  | [algolia.com](https://www.algolia.com)                                                |
 | `Bootstrap`                | [getbootstrap.com](https://getbootstrap.com)                                          |       
 | `Bunny Fonts`              | [fonts.bunny.net](https://fonts.bunny.net/)                                           |       

src/Presets/Alchemer.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Spatie\Csp\Presets;
+
+use Spatie\Csp\Directive;
+use Spatie\Csp\Policy;
+use Spatie\Csp\Preset;
+
+class Alchemer implements Preset
+{
+    public function configure(Policy $policy): void
+    {
+        $policy
+            ->add(Directive::FRAME, ['survey.alchemer.com']);
+    }
+}

tests/.pest/snapshots/PresetTest/it_stringifies_with_data_set____Spatie_Csp_Presets_Alchemer______Spatie_Csp_Presets_Alchemer__.snap

@@ -0,0 +1 @@
+frame-src survey.alchemer.com

tests/PresetTest.php

@@ -21,6 +21,7 @@ function (string $presetClass): void {
 )->with([
     Presets\Basic::class,
     Presets\AdobeFonts::class,
+    Presets\Alchemer::class,
     Presets\Algolia::class,
     Presets\BunnyFonts::class,
     Presets\Bootstrap::class,