[Suggestion] Add support for .opus file extension

[Ashrym0-0]

Hello,

I noticed that the player currently does not open audio files with the .opus extension. However, if I rename the same file to use the .ogg extension, it plays correctly. Since Opus is already supported inside the Ogg container, do you think that it would be possible to add support for .opus as a recognized extension?
Thank you for your work on this project!

PS: English is not my first language, so please excuse any mistakes.

[eliasamurphy]

I have never heard of this file extension before! I'll get to work on it.