Megamenu entry: reload the form when the layout changes

The teaser cards field depends on the layout via displayCond; it now appears right after switching to catalog/teasers instead of only after saving.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/evo_megamenu_json/Configuration/TCA/tx_evomegamenujson_entry.php

@@ -94,6 +94,9 @@ return [
         'layout' => [
             'label' => $ll . 'layout',
             'description' => $ll . 'layout.description',
+            // the teaser cards field depends on the layout (displayCond) -
+            // reload so it appears right away, without saving first
+            'onChange' => 'reload',
             'config' => [
                 'type' => 'select',
                 'renderType' => 'selectSingle',
@@ -101,6 +104,7 @@ return [
                 'items' => [
                     ['label' => $ll . 'layout.columns', 'value' => 'columns'],
                     ['label' => $ll . 'layout.teasers', 'value' => 'teasers'],
+                    ['label' => $ll . 'layout.catalog', 'value' => 'catalog'],
                 ],
             ],
         ],
@@ -127,7 +131,8 @@ return [
             ],
         ],
         'menu_teasers' => [
-            'displayCond' => 'FIELD:layout:=:teasers',
+            // catalog: the cards are the featured tiles of the left column
+            'displayCond' => 'FIELD:layout:IN:teasers,catalog',
             'label' => $ll . 'menu_teasers',
             'description' => $ll . 'menu_teasers.description',
             'config' => [