Improvements and fixes

Data logger setup now shows which of the devices found still need a login.

• A device that still needs a login is now marked "Password missing", and the key icon stores that login without a test read.
• When a logger is not detected or its test read keeps failing, "Request logger support" sends a support request with its details filled in.
• A plant's setup progress now has a fifth step, "Park data": peak power, inverter limit, coordinates and the twelve monthly performance-ratio targets.
• When a direct VPN is added, "Mirox as Server" and "Mirox as Client" now explain their advantages and which one is recommended.
• A component that produced earlier and then stopped no longer appears under "Probably not connected", nor does one on a plant commissioned hours ago.