[BUGFIX] Styling fix for Install Tool Lock Screen in Backend Mode

Resolves: #55464
Releases: 6.2
Change-Id: I1891763db8a8edc5ddb8077a1cc32c8184a7e0c1
Reviewed-on: https://review.typo3.org/27156
Reviewed-by: Ernesto Baschny
Tested-by: Ernesto Baschny

typo3/sysext/install/Resources/Public/Stylesheets/BackendModule/ShowEnableInstallToolButton.css

@@ -7,6 +7,7 @@
 .typo3-message h2 {
 	color: #9E7D4A;
 	font-size: 16px;
+	margin-top: 0;
 }
 
 button {