feat: filter teamers by training attendances

src/Form/TeamerFilterType.php

@@ -50,6 +50,10 @@ class TeamerFilterType extends AbstractType
                         ->orderBy('job_profile.name', 'ASC');
                 },
             ])
+            ->add('noTrainings', CheckboxType::class, [
+                'label' => 'an keinen Fortbildungen teilgenommen',
+                'required' => false,
+            ])
             ->add('apply', SubmitType::class, [
                 'label' => 'filtern',
             ])