[🔗MR] OpenSubtitles support

### Describe your suggested feature

App is now perfect and need no new features except one there are extensions for movies and tvshows thanks for that but some of us require subtitles to watch so please add opensubtiles extension like in vlc please "one last feature"

### Other details

_No response_

### Acknowledgements

- [X] I have searched the existing issues and this is a new ticket, **NOT** a duplicate or related to another open issue.
- [X] I have written a short but informative title.
- [X] If this is an issue with an extension, I should be opening an issue in the [extensions repository](https://github.com/jmir1/aniyomi-extensions/issues/new/choose).
- [X] I have updated the app to version **[0.12.3.5](https://github.com/jmir1/aniyomi/releases/latest)**.
- [X] I will fill out all of the requested information in this form.