Site Health: Improve vertical alignment of icons in test result descriptions.

This change removes redundant CSS properties for different health check statuses in favor of utilizing the `.dashicons` class already in Core to define them more consistently. This also fixes the vertical alignment issues.

Props chetan200891, Clorith, desrosj.
Fixes #46940.
Built from https://develop.svn.wordpress.org/trunk@45309


git-svn-id: http://core.svn.wordpress.org/trunk@45120 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/css/site-health-rtl.css

@@ -153,32 +153,23 @@
 .health-check-body .pass::before,
 .health-check-body .good::before {
 	content: "\f147";
-	display: inline-block;
 	color: #46b450;
-	font-family: dashicons;
-	vertical-align: top;
 }
 
 .health-check-body .warning::before {
 	content: "\f460";
-	display: inline-block;
 	color: #ffb900;
-	font-family: dashicons;
 }
 
 .health-check-body .info::before {
 	content: "\f348";
-	display: inline-block;
 	color: #00a0d2;
-	font-family: dashicons;
 }
 
 .health-check-body .fail::before,
 .health-check-body .error::before {
 	content: "\f335";
-	display: inline-block;
 	color: #dc3232;
-	font-family: dashicons;
 }
 
 .site-health-copy-buttons {

wp-admin/css/site-health.css

@@ -153,32 +153,23 @@
 .health-check-body .pass::before,
 .health-check-body .good::before {
 	content: "\f147";
-	display: inline-block;
 	color: #46b450;
-	font-family: dashicons;
-	vertical-align: top;
 }
 
 .health-check-body .warning::before {
 	content: "\f460";
-	display: inline-block;
 	color: #ffb900;
-	font-family: dashicons;
 }
 
 .health-check-body .info::before {
 	content: "\f348";
-	display: inline-block;
 	color: #00a0d2;
-	font-family: dashicons;
 }
 
 .health-check-body .fail::before,
 .health-check-body .error::before {
 	content: "\f335";
-	display: inline-block;
 	color: #dc3232;
-	font-family: dashicons;
 }
 
 .site-health-copy-buttons {