Improve WiFi channel selection GUI

This GUI enhancement improves the channel selection for each of the 2.4GHz and 5GHz wireless radios. For 2.4GHz, you can select two default channel plans—Three Channels and Four Channels—to automatically configure non-overlapping channels. For 5.0GHz, a new slide-in page with improved visualization is added to help users select channels.

Selecting a channel for 2.4GHz wireless radios:

The following image shows the new Channel Plan field:

You can select:

• Three Channels (automatically selects channel 1, 6, and 11),
• Four Channels (automatically selects channels 1, 4, 8, and 11), or
• Custom (select custom channels).

Selecting a channel for 5GHz wireless radios:

You can select channels for the 5GHz radio by clicking Set Channels. The following image shows the channel selector panel:

You can select individual channels or click Toggle DFS Channels and Toggle Weather Radar Channels to select/deselect those channels . The channel chart also shows channel availability for 40MHz or 80MHz channel-bonding.