Media item title: show as "Original (Translated)"

[afv]

First of all, thanks for this project!

I use the system in english and besides finding it weird to see my native language media titles translated, I think it is interesting to see the original titles; this PR changes it to show the original title + the translated title in parentheses, Original (Translated), if they are different.

[bonukai]

Thank you for your contribution, but I think this behaviour should be controlled by the user, in user preferences, where there would be an option to display title: original title, translated title, original (translated).

If you would like to, you could implement client side part of this, and I will add displayTitle: "original" or "translated" or "original-translated" to user preferences on the server side