Fix dark theme on public link shares

Signed-off-by: szaimen <szaimen@e.mail.de>

Author: szaimen

apps/files/js/filelist.js

@@ -1662,6 +1662,10 @@
 			tr.append(td);
 
 			var isDarkTheme = OCA.Accessibility && OCA.Accessibility.theme === 'dark'
+			// Needed for public pages:
+			if (!OCA.Accessibility && window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches) {
+				var isDarkTheme = true;
+			}
 
 			try {
 				var maxContrastHex = window.getComputedStyle(document.documentElement)