[css-color-adjust-1] Forced colors should also override text decoration colors. w3c#3854

Author: fantasai

css-color-adjust-1/Overview.bs

@@ -306,6 +306,8 @@ Properties Affected by Forced Colors Mode {#forced-colors-properties}
 
 	<pre>
 		color: revert !important;
+		text-decoration-color: revert !important;
+		text-emphasis-color: revert !important;
 		background-color: revert !important;
 		border-color: revert !important;
 		outline-color: revert !important