Populate logon inputs through the querystring.

Password *probably* shouldn't be accepted (in production). However, it makes testing a hell of a lot easier.

We also focus on the next input box that needs to be filled out.

Eg: `http://localhost:3000/?host=localhost&user=AdminUser&password=...`

If all inputs are filled out (the above link would be accepted as port is defaulted to 4242), then it will autoconnect.