Improve Group management/Client by making group association for default clients visible

[DL6ER]

@yubiuser

but now you have a long long long drop down menu

Not any more with the MAC selection. Also, you can search in this field now.

Feedback for "Allow defining clients by their MAC address, host name and networking interface"

Added the IP addresses. Again, if there are multiple (recent) ones, they are all shown where front to back related to most recent to least recently seen. This will also allow you to use the search field for finding clients by their IP addresses. [Screenshot at 2020-05-14 19-25-26]