Replacing Slash Menu Component

import "@blocknote/core/fonts/inter.css"; import {  DefaultReactSuggestionItem,  SuggestionMenuController,  SuggestionMenuProps,  useCreateBlockNote, } from "@blocknote/react"; import { BlockNoteView } from "@blocknote/mantine"; import "@blocknote/mantine/style.css";  import "./styles.css";  // Custom component to replace the default Slash Menu. function CustomSlashMenu(  props: SuggestionMenuProps<DefaultReactSuggestionItem>, ) {  return (  <div className={"slash-menu"}>  {props.items.map((item, index) => (  <div  className={`slash-menu-item ${  props.selectedIndex === index ? "selected" : ""  }`}  onClick={() => {  props.onItemClick?.(item);  }}  >  {item.title}  </div>  ))}  </div>  ); }  export default function App() {  // Creates a new editor instance.  const editor = useCreateBlockNote({  initialContent: [  {  type: "paragraph",  content: "Welcome to this demo!",  },  {  type: "paragraph",  content: "Press the '/' key to open the Slash Menu",  },  {  type: "paragraph",  content: "It's been replaced with a custom component",  },  {  type: "paragraph",  },  ],  });   // Renders the editor instance.  return (  <BlockNoteView editor={editor} slashMenu={false}>  <SuggestionMenuController  triggerCharacter={"/"}  suggestionMenuComponent={CustomSlashMenu}  />  </BlockNoteView>  ); } 

.slash-menu {  background-color: white;  border: 1px solid lightgray;  border-radius: 2px;  box-shadow: 0 0 8px #dddddd;   display: flex;  flex-direction: column;  gap: 8px;  height: fit-content;  max-height: inherit;   overflow: auto;   padding: 8px;   top: 8px; }  .slash-menu-item {  background-color: white;  border: 1px solid lightgray;  border-radius: 2px;  box-shadow: 0 0 4px #dddddd;   cursor: pointer;   font-size: 16px;   align-items: center;  display: flex;  flex-direction: row;   padding: 8px; }  .slash-menu-item:hover, .slash-menu-item.selected {  background-color: lightgray; }