refactor controllers to use form requests for validation

app/Http/Requests/SkillRequest.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class SkillRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        return [
+            'title' => ['required', 'string', 'max:255'],
+            'description' => ['nullable', 'string'],
+            'rating' => ['required', 'numeric', 'min:1', 'max:10'],
+            'image' => ['nullable', 'image', 'max:2048'],
+            'type' => ['required', 'in:rating,tag,other'],
+        ];
+    }
+    public function messages(): array
+    {
+        return [
+            'title.required' => 'Een titel is verplicht.',
+            'rating.required' => 'Geef een beoordeling tussen 1 en 10.',
+            'type.in' => 'Het type moet rating, tag of other zijn.',
+        ];
+    }
+
+}