fix: drop .js extension from versioning example imports so Turbopack docs build resolves them

Author: nperez0111

examples/07-collaboration/11-versioning-yjs13/src/App.tsx

@@ -2,7 +2,7 @@ import "@blocknote/core/fonts/inter.css";
 import { withCollaboration } from "@blocknote/core/yjs";
 import { VersioningExtension } from "@blocknote/core/extensions";
 import { createYjsVersioningAdapter } from "@blocknote/core/yjs";
-import { localStorageEndpoints } from "./localStorageEndpoints.js";
+import { localStorageEndpoints } from "./localStorageEndpoints";
 import {
   BlockNoteViewEditor,
   useCreateBlockNote,
@@ -14,7 +14,7 @@ import "@blocknote/mantine/style.css";
 import * as Y from "yjs";
 import { WebsocketProvider } from "y-websocket";
 
-import { VersionHistorySidebar } from "./VersionHistorySidebar.js";
+import { VersionHistorySidebar } from "./VersionHistorySidebar";
 import "./style.css";
 
 const roomName = "blocknote-versioning-yjs-example";

examples/07-collaboration/13-versioning-yjs14/src/App.tsx

@@ -17,7 +17,7 @@ import "@blocknote/mantine/style.css";
 import * as Y from "@y/y";
 import { WebsocketProvider } from "@y/websocket";
 
-import { VersionHistorySidebar } from "./VersionHistorySidebar.js";
+import { VersionHistorySidebar } from "./VersionHistorySidebar";
 import "./style.css";
 
 // YHub serves both real-time sync (over WebSocket) and version history (over