App Passwords: Ensure the Add New button isn't hidden on mobile.

Also removes an unnecessary `!important` rule introduced in [49772] when fixing a similar issue.

Props vladytimy, mukesh27.
Fixes #51980.
See [49772].

Built from https://develop.svn.wordpress.org/trunk@49921


git-svn-id: http://core.svn.wordpress.org/trunk@49620 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/css/forms.css

@@ -862,6 +862,7 @@ table.form-table td .updated p {
 .create-application-password p.submit {
 	margin-bottom: 0;
 	padding-bottom: 0;
+	display: block;
 }
 
 #application-passwords-section .notice {
@@ -878,7 +879,7 @@ table.form-table td .updated p {
 }
 
 .authorize-application-php .form-wrap p {
-	display: block !important;
+	display: block;
 }
 
 /*------------------------------------------------------------------------------