various tiny improvements

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

lib/functions/formfields/function.buildFormEx.php

@@ -42,6 +42,12 @@ function buildFormEx($form, $part = '') {
 					}
 				}
 
+				// visible = Settings::Get('phpfpm.enabled') for example would result in false if not enabled
+				// and therefore not shown as intended
+				if (isset($groupdetails['visible'])) {
+					$do_show = $groupdetails['visible'];
+				}
+
 				if ($do_show) {
 					if (isset($groupdetails['title']) && $groupdetails['title'] != '') {
 						$fields .= getFormGroupOutput($groupname, $groupdetails);