style(home/media): change nomacs theme to dark

Author: DivitMittal

home/media/image/nomacs/nomacs-settings.ini

@@ -16,7 +16,7 @@ keepZoom=0
 showNavigation=true
 showScrollBars=false
 stylePlugin=macos
-themeName312=Light-Theme.css
+themeName312=Dark-Theme.css
 thumbPreviewSize=64
 thumbSize=128
 transition=2