pfSense

Update nginx HTTP2 syntax. Fixes #15863

Define PHP request_order. Fixes #15893

Config access regression when saving dnsmasq overrides. Fix #15890

Dashboard widget settings and widgetkey validation. Issue #15844

• Adds validation of submitted widgetkey values before use when storing widget settings and other similar operations.
• Adds validation of widget settings which were not already validated.

Validate inputs when killing OpenVPN clients. Fixes #15856

While here, fix the JS 'busy' icon switching for both the widget and status page.

Ignore queue status interface. Fix #15885

Return the previous condition; $altqstats['interface'] is not required.

Don't separate the last array key in config access paths

Config access regression in L2TP. Fix #15882

Pass the correct option for pfSense-upgrade to detect when a new version is available.

To be able to find new releases, pfSense-upgrade needs to look at all the
repositories and that is done with '-C'.

Ticket: #15880

Quote the shell variables as necessary.

No functional changes.