pfSense

Experiment using the OS' native font stack

Following the steps of bfbfa4dd254c110db4122925d0a3716a34d4c664,
experiment using the OS' native font stack.

Obtained from the Bootstrap project (twbs/bootstrap#19098,
twbs/bootstrap@0a31dacf3e0c43a73b2e61e266155b9dcce35339)

pfSense.css: Fix sortable tables' font

experiment with tighter styling

Fixes #6601 clean up installed packages html

clean up Installed Packages widget by removing category

Increase filtering tail limit for logging, fixes #6652

Whitespace fixes

Fix redmine #6640 DHCPv6 server time format

The original code here ended up always applying the time zone offset once, and if you had set dhcpv6leaseinlocaltime then it got applied twice, so Sydney at UTC+10:00 would show UTC+20:00 and presumably somewhere at UTC-04:00 would show UTC-08:00...

Section title was wrong, discovered by mfine

openvpn_add_dhcpopts already sets redirect-gateway, don't add it a second time. Ticket #6633