Fix lints and tests.

.prettierrc.json

@@ -4,5 +4,6 @@
     "semi": true,
     "singleQuote": true,
     "trailingComma": "all",
-    "proseWrap": "always"
+    "proseWrap": "always",
+    "endOfLine": "crlf"
 }

src/companion.ts

@@ -18,6 +18,7 @@ import { spawn } from 'child_process';
 import { getJudgeViewProvider } from './extension';
 import { words_in_text } from './utilsPure';
 import telmetry from './telmetry';
+import os from 'os';
 
 const emptyResponse: CphEmptyResponse = { empty: true };
 let savedResponse: CphEmptyResponse | CphSubmitResponse = emptyResponse;
@@ -26,7 +27,7 @@ const COMPANION_LOGGING = false;
 export const submitKattisProblem = (problem: Problem) => {
     globalThis.reporter.sendTelemetryEvent(telmetry.SUBMIT_TO_KATTIS);
     const srcPath = problem.srcPath;
-    const homedir = require('os').homedir();
+    const homedir = os.homedir();
     let submitPath = `${homedir}/.kattis/submit.py`;
     if (process.platform == 'win32') {
         if (

src/types.ts

@@ -1,3 +1,4 @@
+/* eslint no-var: off */
 import TelemetryReporter from '@vscode/extension-telemetry';
 import * as vscode from 'vscode';
 

src/webview/frontend/App.tsx

@@ -1,5 +1,5 @@
 import React, { useState, useEffect, useReducer } from 'react';
-import ReactDOM from 'react-dom';
+import { createRoot } from 'react-dom/client';
 import {
     Problem,
     WebviewToVSEvent,
@@ -678,4 +678,5 @@ function App() {
     }
 }
 
-ReactDOM.render(<App />, document.getElementById('app'));
+const root = createRoot(document.getElementById('app')!);
+root.render(<App />);