add contact form and mailing

Co-authored-by: Constantin Simonis <constantin@simonis.lol>
Reviewed-on: http://git.simonis.lol/sites/abiball/pulls/6
Reviewed-by: Constantin Simonis <constantin@simonis.lol>
Co-authored-by: Jan-Marlon Leibl <jleibl@proton.me>
Co-committed-by: Jan-Marlon Leibl <jleibl@proton.me>

src/Form/ContactForm.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Form;
+
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\EmailType;
+use Symfony\Component\Form\Extension\Core\Type\TextareaType;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
+use Symfony\Component\Form\FormBuilderInterface;
+
+class ContactForm extends AbstractType
+{
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        $builder->add('email', EmailType::class)
+            ->add('message', TextareaType::class)
+            ->add('phone', TextType::class);
+    }
+}