Fix twofactor provider icons in dark mode

Signed-off-by: Joas Schilling <coding@schilljs.com>

Author: nickvergessen

apps/settings/css/settings.css

@@ -514,7 +514,6 @@ table.nostyle {
 		width: 16px;
 		height: 16px;
 		vertical-align: sub;
-		filter: var(--background-invert-if-dark);
 	}
 }