Ability to download subtitles from server

[Dnkhatri]

I watch a lot of foreign media and majority of the subs I have are external. WIth the Jellyfin android app although we are able to download the video files we are not able to download the subtitles so practically can't watch the media unless we stream it. Now that I think about it this issue might be relevant for the server as well as without the server exposing the link to download the subtitle the android app can't download it.