fix: allow enter key to create new list items in editor (#22001)

* fix: allow enter key to create new list items in editor

* remove: unnecessary priority set to low

* remove: unnecessary priority set to low

---------

Co-authored-by: Anik Dhabal Babu <81948346+anikdhabal@users.noreply.github.com>
Co-authored-by: Eunjae Lee <hey@eunjae.dev>

packages/ui/components/editor/plugins/customEnterKeyPlugin.tsx

@@ -1,5 +1,6 @@
 "use client";
 
+import { $isListItemNode } from "@lexical/list";
 import { useLexicalComposerContext } from "@lexical/react/LexicalComposerContext";
 import {
   $createLineBreakNode,
@@ -19,6 +20,12 @@ const CustomEnterKeyPlugin = () => {
       (event: any) => {
         const selection = $getSelection();
         if ($isRangeSelection(selection)) {
+          const anchorNode = selection.anchor.getNode();
+
+          if ($isListItemNode(anchorNode) || $isListItemNode(anchorNode.getParent())) {
+            return false; // Don't prevent default - let Lexical handle list behavior
+          }
+
           event.preventDefault();
           const lineBreakNode = $createLineBreakNode();
           selection.insertNodes([lineBreakNode]);