Fix modal

assets/controllers/image_upload_controller.js

@@ -13,13 +13,13 @@ export default class extends Controller {
     }
 
     openDialog() {
-        this.dialogTarget.style.display = '';
+        this.dialogTarget.classList.add('active');
         this.errorTarget.textContent = '';
         this.progressTarget.style.display = 'none';
     }
 
     closeDialog() {
-        this.dialogTarget.style.display = 'none';
+        this.dialogTarget.classList.remove('active');
         this.errorTarget.textContent = '';
         this.progressTarget.style.display = 'none';
     }

assets/styles/03-components/image-upload.css

@@ -34,7 +34,6 @@
 
 .iu-modal .modal-header {
     padding: var(--spacing-3);
-    border-bottom: 1px solid var(--color-border, #dee2e6);
     display: flex;
     justify-content: space-between;
     align-items: center;