fix(disk): ignore efivarfs pseudo-mount

The efivarfs filesystem exposes EFI variables and reports as
100% full, which is correct for the kernel but misleading on the
serverinfo dashboard. Treat it the same as tmpfs/devtmpfs/squashfs/
overlay and skip it in disk reporting.

Signed-off-by: Frank Karlitschek <karlitschek@users.noreply.github.com>

Author: karlitschek

lib/OperatingSystems/Linux.php

@@ -204,7 +204,7 @@ public function getDiskInfo(): array {
 		}
 
 		foreach ($matches['Filesystem'] as $i => $filesystem) {
-			if (in_array($matches['Type'][$i], ['tmpfs', 'devtmpfs', 'squashfs', 'overlay'], false)) {
+			if (in_array($matches['Type'][$i], ['tmpfs', 'devtmpfs', 'squashfs', 'overlay', 'efivarfs'], false)) {
 				continue;
 			} elseif (in_array($matches['Mounted'][$i], ['/etc/hostname', '/etc/hosts'], false)) {
 				continue;