feat: mailing to filtered teamer list

addresses #869dv9bur

src/Form/TeamerMailingType.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace App\Form;
+
+use App\Model\TeamerMailingDto;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\TextareaType;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+class TeamerMailingType extends AbstractType
+{
+    public function buildForm(FormBuilderInterface $builder, array $options): void
+    {
+        $builder
+            ->add('subject', TextType::class, [
+                'label' => 'Betreff',
+            ])
+            ->add('message', TextareaType::class, [
+                'label' => 'Nachricht',
+                'attr' => [
+                    'data-controller' => 'textarea-autosize',
+                    'data-action' => 'textarea-autosize#resize',
+                    'data-textarea-autosize-min-rows-value' => 12,
+                ],
+            ])
+        ;
+    }
+
+    public function configureOptions(OptionsResolver $resolver): void
+    {
+        $resolver
+            ->setDefaults([
+                'data_class' => TeamerMailingDto::class,
+            ])
+        ;
+    }
+}