The DisplayTitle property was using .NET's CultureInfo.GetCultures(NeutralCultures)
to resolve language display names. Since zh-CN is a specific culture (not neutral),
it would fall back to the base 'zh' code, resulting in generic 'Chinese' instead
of 'Chinese (Simplified)'.
This change adds a LocalizedLanguage property to MediaStream that gets populated
via LocalizationManager.FindLanguageInfo() when streams are retrieved from the
database. This leverages Jellyfin's existing iso6392.txt mappings which correctly
map zh-CN to 'Chinese (Simplified)'.
The same pattern is already used for other localized strings like LocalizedDefault
and LocalizedExternal.
Add resolution text output for more resolutions
Authored-by: Shadowghost <Ghost_of_Stone@web.de>
Merged-by: Bond-009 <bond.009@outlook.com>
Original-merge: 2b46917dcf7af970dc95d4ef0bbfebac7a520d25
