Fixed wifi.sh (dealing with parenthesis)

[Alligadi]

Hi!

Attached is a fixed wifi.sh.
Many recent phones allow for Wifi Direct connections, different than many usual wifi names, these often come with parentheses, have their name assigned by the system and can not be user-adjusted.
The existing wifi.sh does not escape parenthesis, leading to a script error on connect, the attached wifi.sh doesn't suffer from that issue.

Best regards,
Alligadi