g-c-c chrashes when wifi page is open and you flip the wifi HKS

Steps to reproduce:

• Open g-c-c and go to the Wi-fi panel
• Flip the wifi Kill Switch to kill the wifi
• g-c-c crashes

Expected behavior: when you flip the Kill switch to disable wifi, gcc not crashing

This does not happen with other g-c-c pages. If you try the same with other pages, like the Bluetooh page, it will not crash and gracefully deal with the wifi card no longer being present.

Currently this this not affect desktop.

g-c-c version:

gnome-control-center/landing,now 1:3.38.4-1pureos2 arm64 [installed,automatic]
  utilities to configure the GNOME desktop

wifi