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.

app/Http/Controllers/ContactSubmissionController.php

@@ -4,6 +4,7 @@ namespace App\Http\Controllers;
 
 use App\Http\Requests\ContactSubmissionRequest;
 use App\Models\ContactSubmission;
+use Spatie\DiscordAlerts\Facades\DiscordAlert;
 
 class ContactSubmissionController extends Controller
 {
@@ -16,6 +17,20 @@ class ContactSubmissionController extends Controller
     {
         $contactSubmission = ContactSubmission::create($request->validated());
 
+        $descriptionContent = "**Name**: {$contactSubmission->name}\n\n**Email**: {$contactSubmission->email}\n\n**Category**: {$contactSubmission->category->humanReadable()}\n\n**Subject**: {$contactSubmission->subject}\n\n**Message**: {$contactSubmission->message}";
+
+        if ($contactSubmission->discord) {
+            $descriptionContent .= "\n\n\n**Discord**: {$contactSubmission->discord}";
+        }
+
+        DiscordAlert::message("There is a new contact submission from {$contactSubmission->name} ({$contactSubmission->email}).", [
+            [
+                'title' => "{$contactSubmission->category->humanReadable()} - {$contactSubmission->subject}",
+                'description' => $descriptionContent,
+                'color' => '#ff8a4c',
+            ]
+        ]);
+
         return redirect()->route('contact.index')->with('success', 'Your message has been sent!');
     }
 }