pfSense

Check input validation before prompting to apply settings. Fix #16162

Correct the DNS info change detection. Fix #16170

The variable $dns_changed was introduced along with the RENEW reason and
is intended to only take affect with RENEW. This is done to keep the
original behavior for reasons other than RENEW.

Fix IPsec settings filter policy link

Fix config check for if_pppoe

'system/use_mpd5_for_pppoe' is not a valid config path.

Remove the pppoe reset cron job when the interface is disabled or with if_pppoe

Hide unsupported options with if_pppoe. Fix #16155

Check for Kea custom configuration before retrying without it

Errors without custom configuration can also trigger the notice. In such
case, retrying is redundant and the notice text is misleading.

ddns: use the correct AF for the service type. Fix #16156

Use IPv6 system preference for all configured interface types in get_request_source_address()

Correct DHCP6 client log

This function is called regardleass of the "without RA" option. Followup
to dd3d48af87c892a070210f0064e589157868e7c2.