Updates the language client import

Author: gnikit

src/lang-server.ts

@@ -2,7 +2,7 @@ import {
   LanguageClient,
   LanguageClientOptions,
   Executable,
-} from 'vscode-languageclient'
+} from 'vscode-languageclient/node'
 import * as vscode from 'vscode'
 import {
   getBinPath,