Add 6GHz Wi-Fi

[GerryFerdinandus]

This is a low priority issue. A well-scanned area already gives good accuracy. An additional support for 6GHz can increase accuracy due to the shorter distance the signal travels.

Link:
The primary differences between wireless frequencies are the range (coverage) and bandwidth (speed) that the bands provide.

• The 2.4 GHz band provides the most coverage but transmits data at slower speeds.
• The 5 GHz band provides less coverage but transmits data at faster speeds.
• The 6 GHz band, introduced with the new WiFi 6E standard, provides the least coverage but transmits data at the fastest speeds of the three frequencies.