Upgrade dependencies

- mpris-service: migrate to @jellybrick/mpris-service, which has upgraded dependencies and uses class
- i18next-parser: 6 -> 8. This requires a small change to i18next-parser.config.js

src/types/mpris-service.d.ts

@@ -1 +1 @@
-declare module 'mpris-service';
+declare module '@jellybrick/mpris-service';