fix for https://github.com/opnsense/core/issues/296
and  https://github.com/opnsense/core/issues/347

when no servers are selected, all still apply, which should keep current configurations valid.

(legacy) align help message with openvpn for vpn_openvpn_server.php, closes https://github.com/opnsense/core/issues/774

(legacy) add copy/move to vpn_openvpn_csc.php overview + some js cleanups. closes https://github.com/opnsense/core/issues/442

(legacy) fix crashreport PHP Warning:  Illegal string offset 'wan' in /usr/local/www/services_dhcpv6.php on line 57

(legacy) fix crashreport Call to undefined function get_services() in /usr/local/www/fbegin.inc on line 38

(ids) add "update" for rules action, triggers reloadRulesAction. related https://github.com/opnsense/core/issues/750

(legacy, crashreporter) limit presentation and upload size of PHP_errors.log to 1MB, closes https://github.com/opnsense/core/issues/768