fix: refresh field list after duplicating a custom field

Listen for 'field-created' event in ManageCustomFieldSection so the
UI updates without a page reload. Rename fieldDeleted() to
refreshSection() and use array syntax for #[On] attribute.

Author: ManukMinasyan

src/Livewire/ManageCustomFieldSection.php

@@ -51,8 +51,8 @@ public function fieldWidthUpdated(int|string $fieldId, int $width): void
         $this->section->refresh();
     }
 
-    #[On('field-deleted')]
-    public function fieldDeleted(): void
+    #[On(['field-created', 'field-deleted'])]
+    public function refreshSection(): void
     {
         $this->section->refresh();
     }