fix port changing

[thiva7]

hey

just small fix for your app

in server file change in line 57
from
self.port = self.userInput.portNoField.text()
to
self.port = int(self.userInput.portNoField.text())

and in client
from
self.port = self.config.portNoField.text()
to
self.port = int(self.config.portNoField.text())

if not make this changes for me is not accept client to add custom port and not connect to server