Improve cold start performance

ts/sql/initialize.ts

@@ -0,0 +1,16 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import { ipcRenderer as ipc } from 'electron';
+import fs from 'fs-extra';
+import pify from 'pify';
+import sql from './Server';
+
+const getRealPath = pify(fs.realpath);
+
+export async function initialize(): Promise<void> {
+  const configDir = await getRealPath(ipc.sendSync('get-user-data-path'));
+  const key = ipc.sendSync('user-config-key');
+
+  await sql.initializeRenderer({ configDir, key });
+}