Can't connect to open WiFi

[luandro]

The UI form validation for the captive-portal and the dashboard don't permit to connect to a password-less access-point.

[maggie44]

You can raise a PR to remove the three lines here that will remove the rule:

https://github.com/balena-labs-research/starter-interface/blob/5cc4965c6caecdad07875942ab209c8092ab6910/ui/src/components/WifiConnect.vue#L92