feat: Add required functionality

Author: jiwom

src/Html/Editor/Fields/Field.php

@@ -387,4 +387,20 @@ public function className(string $className): static
 
         return $this;
     }
+
+   /**
+     * Add an additional format to indicate if a field is required.
+     *
+     * @return $this
+     */
+    public function required(bool $required = true) : Field
+    {
+        /** @var Field $this */
+        $requiredFieldHtml = $required ? '<span class="text-red-500">*</span>' : '';
+
+        /** @var string $label */
+        $label = $this->get('label');
+
+        return $this->label($label.' '.$requiredFieldHtml);
+    }
 }