(cherry picked from commit 1e5c55bf)

(cherry picked from commit 51b04e9b)

(interface groups) trigger missing to notify changed interface administration, closes https://github.com/opnsense/core/issues/1064

Language correction: more generic expression

PR: https://forum.opnsense.org/index.php?topic=1668

(fw, alias) refactor update_alias_names_upon_change to support nested alias renaming, closes https://github.com/opnsense/core/issues/1028

legacy_interface_stats using the wrong interface name. reference https://github.com/opnsense/core/issues/1014

This reverts commit 2fa901e8.

This reverts commit 4638d99c.

Prodded by: @fabianfrz

translation