add possibility to show subdomains fully in php-settings listing; UI adjustments

Signed-off-by: Michael Kaufmann <d00p@froxlor.org>

install/updatesql.php

@@ -26,6 +26,7 @@
 use Froxlor\Froxlor;
 use Froxlor\FileDir;
 use Froxlor\FroxlorLogger;
+use Froxlor\Settings;
 use Froxlor\UI\Response;
 use Froxlor\Database\IntegrityCheck;
 use Froxlor\Install\Update;