Password is set before I have typed the whole thing

[stuaxo]

I was typing a new admin password, but it didn't wait for me to type a whole one.

As I was half way through the browser asked me to use a password to login, and it had only taken some of the characters, it should not instant apply the password as people type.

[stuaxo]

Confirmed this is the same for the mqtt one (I ended up having mq instead of mqtt for a test).

Usernames and passwords need a confirmation button to set them, and the two sets must be separate.