🔹 Improvement: add 'Close' button + the view of all selected languages is not intuitive for the user

[RenBabiuch]

In RemoteMicSongLanguagesPage (when user is able to select one/more song-languages):

1. there would be great to have f.e. a Close button (or maybe even 2 - Close and Save buttons) to exit that window peacfully without changes or knowing that the changes have been saved.

2. actually, all song-languages are selected to the game by default, but visually - it looks like none of them is selected (buttons look like to be disabled; screen1), which can be a little bit confused for the user. Normally, when user picks up the language, the font's color of that language button changes to gold (screen2) - then user knows, that sth happend and language was selected correctly, but when f.e. he finally decides that wants to choose all of them, then colors of all selected buttons changing from 'gold' into white, looking like disabled again.

• the language selection view could be consistent here: when all languages are selected, they will all be visible as gold.
  Only languages that have not been selected by the user, could be marked in white font + when all languages are deselected, add info for the user to pick up at least 1 language.