Merge branch '2.3' of ezsystems/ezplatform-admin-ui into 4.5 (#840)

Author: dew326

src/bundle/Resources/public/js/scripts/sidebar/instant.filter.js

@@ -39,6 +39,15 @@
         filterInput.addEventListener('change', filterItems.bind(filter, itemsMap, groups), false);
         filterInput.addEventListener('blur', filterItems.bind(filter, itemsMap, groups), false);
         filterInput.addEventListener('keyup', filterItems.bind(filter, itemsMap, groups), false);
+        filterInput.addEventListener(
+            'keydown',
+            (event) => {
+                if (event.key === 'Enter') {
+                    event.preventDefault();
+                }
+            },
+            false,
+        );
     };
 
     filters.forEach(initFilter);