fix: remove .js extension from module import path.

After upgrading to NodeJS 24 compilation started to fail with:
src/editor/yara-monaco.ts(8,8): error TS2307: Cannot find module 'vscode-languageserver-protocol/browser.js' or its corresponding type declarations.

Author: plusvic

playground/src/editor/yara-monaco.ts

@@ -5,7 +5,7 @@ import * as monaco from "@codingame/monaco-vscode-editor-api";
 import {
   BrowserMessageReader,
   BrowserMessageWriter,
-} from "vscode-languageserver-protocol/browser.js";
+} from "vscode-languageserver-protocol/browser";
 import { CloseAction, ErrorAction } from "vscode-languageclient/browser.js";
 
 import { MonacoLanguageClient } from "monaco-languageclient";