pfSense

PHP8 fixes for service status widget. Fixes #13506

Workaround new pkg(8) behavior causing files with "NULL" in the path to be skipped on install. Fixes #13394.

qinq: use if_vlan rather than netgraph

if_vlan now supports QinQ, so use that rather than netgraph. This is
expected to perform better, removes a subsystem dependency and
simplifies the php code as well.

Note that this is not possible on stable/12.

Remove unused argument from interface_qinq_configure()

$fd is always NULL, so there's no point in having branches for it.

Correct config_path_enabled path in system_generate_nginx_config. #13446

Path corrections to system.inc. Issue #13446

• Corrected single quote strings wwith variable expansion
• Corrected 2-deep paths that were incorrectly pattern replaced to
  array_get_path('foo','bar' instead of array_get_path('foo/bar')

Correct edns config path in system_resolvconf_generate. Issue #13446

Make *_get_path() return $default for empty values. Issue #13446.

When $default is non-null and the path resolves to an empty element, return
$default instead of the value. This allows callers to intentionally ignore empty
values by specifying $default and simplifies the expressions needed to determine...

Fix for system.inc. For #13446

Properly quote variables

No functional change intended