feat(contact): Add hCaptcha integration, Discord alert for contact

- Added hCaptcha validation to the contact form.
- Integrated hCaptcha configuration in the application.
- Implemented Discord alerts for new contact submissions with detailed content.

config/HCaptcha.php

@@ -0,0 +1,10 @@
+<?php
+
+return [
+    'secret'            => env('HCAPTCHA_SECRET'),
+    'sitekey'           => env('HCAPTCHA_SITEKEY'),
+    'server-get-config' => false,
+    'options'           => [
+        'timeout' => 30,
+    ],
+];