Enable Chromium sandboxing for remote webviews.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

app/renderer/js/components/webview.ts

@@ -42,7 +42,7 @@ export default class WebView {
         src="${props.url}"
         ${props.preload === undefined
           ? html``
-          : html`preload="${props.preload}" webpreferences="sandbox=no"`}
+          : html`preload="${props.preload}"`}
         partition="persist:webviewsession"
         allowpopups
       >

app/renderer/js/electron-bridge.ts

@@ -1,4 +1,4 @@
-import {EventEmitter} from "node:events";
+import {EventEmitter} from "events"; // eslint-disable-line unicorn/prefer-node-protocol
 
 import type {ClipboardDecrypter} from "./clipboard-decrypter.js";
 import {ClipboardDecrypterImpl} from "./clipboard-decrypter.js";