Minor- Better validate/document "List of networks that are allowed without auth"

[neek]

The Server -> Network field called “List of networks that are allowed without auth” claims to want “Comma separated list of IP/netmask for networks that are allowed to access Plex Media Server without logging in.”, according to the text below the field. I interpreted this to mean something of the form “192.168.1.0/24”, when in fact what was required was something like “192.168.1.0/255.255.255.0”. I suggest either validating the data in that field, or allowing either form, or, ideally, do both.