chore: 著作権とライセンスについての情報を各ファイルに追加する (#141)

* chore: 著作権とライセンスについての情報を各ファイルに追加する

* chore: Add the SPDX information to each file

Add copyright and licensing information as defined in version 3.0 of
the REUSE Specification.

* tweak format

---------

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

* chore: Add SPDX-License-Identifier [skip ci]

* add missing SPDX-License-Identifier

* remove unused file

---------

Co-authored-by: Shun Sakai <sorairolake@protonmail.ch>
Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>
Co-authored-by: Chocolate Pie <106949016+chocolate-pie@users.noreply.github.com>

packages/frontend/src/scripts/initialize-sw.ts

@@ -1,9 +1,14 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
 import { lang } from '@/config';
 
 export async function initializeSw() {
 	if (!('serviceWorker' in navigator)) return;
 
-	navigator.serviceWorker.register(`/sw.js`, { scope: '/', type: 'classic' });
+	navigator.serviceWorker.register('/sw.js', { scope: '/', type: 'classic' });
 	navigator.serviceWorker.ready.then(registration => {
 		registration.active?.postMessage({
 			msg: 'initialize',