Improvements and fixes

Deleting a plant's VPN connection now shows what is lost before the deletion is confirmed.

• Before a plant's VPN connection is deleted, the confirmation shows how many network devices lose their route, and some of their addresses.
• A personal VPN certificate from the profile page now also reaches the networks of sites connected to a VPN hosted by a plant.
• "Reachable subnets" on the profile page's "VPN" tab now updates on its own after a plant's subnets change.
• On the "Topology" tab, a device whose address lies outside every configured subnet of its plant is now listed in a separate group.
• A request for access to Mirox now receives a confirmation email in the language the request was made in.
• In an organization's plant list, "Manage VPN" now opens that plant's "Networking" page instead of a separate window.