Accessibility: Administration: Use a darker color for post dates in t…

…he Activity and Quick Draft dashboard widgets.

This ensures that the color meets the WCAG 2.0 AA recommended contrast ratio.

Follow-up to [50025].

Props sabernhardt, Otshelnik-Fm, audrasjb.
Fixes #52760.

git-svn-id: https://develop.svn.wordpress.org/trunk@50525 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/css/dashboard.css

@@ -693,7 +693,7 @@ body #dashboard-widgets .postbox form .submit {
 	margin-bottom: 1em;
 }
 #dashboard_quick_press .drafts li time {
-	color: #787c82;
+	color: #646970;
 }
 
 #dashboard_quick_press .drafts p {
@@ -788,7 +788,7 @@ body #dashboard-widgets .postbox form .submit {
 	display: inline-block;
 	margin-right: 5px;
 	min-width: 150px;
-	color: #787c82;
+	color: #646970;
 }
 
 .activity-block {