Updated Greek MythFrontend, MythArchive, MythBrowser, MythGallery,
MythGame, MythMusic, MythNetvision, MythNews, MythWeather,
MythZoneMinder translation from Yianni Vidalis

Thank you Yianni!

Closes #11721

Signed-off-by: Nicolas Riendeau <nriendeau@mythtv.org>