Follow up per locale bundle (#16381)

* fix docker build

* enable check spdx license id in frontend-builder

* fix eslint config

* run eslint for frontend-builder in ci

* fix eslint

* add license headers

* fix unnecessary comments

* update changelog

* fix generateDts

* fix tsx

packages/frontend-builder/utils.ts

@@ -1,5 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
 
 export function assertNever(x: never): never {
+	// eslint-disable-next-line @typescript-eslint/no-explicit-any
 	throw new Error(`Unexpected type: ${(x as any)?.type ?? x}`);
 }