This change shows buttons of QR code scnanner and QR code generator
for a connected Wi-Fi network.
Bug: 134706055
Test: Generate QR code for a WPA2/WPA3 personal transition mode Wi-Fi AP
and check if the security type is WPA2 personal.
Generate QR code for open network.
Generate QR code for OWE network.
Scan a QR code of open network, verify connection.
Scan a QR code of OWE network, verify connection.
Scan a QR code of WPA3 network, verify connection.
Scan a QR code of WPA3 network, verify transition mode connection.
Change-Id: I60f2c38585f85745f992fa63a5ea85312f08c5e5
751eba205b