Bugfix for failing quotes, Login-screen, Force Azure off, Initial hidden "Hi" to have robot/assistant initiate dialog.

[eirikora]

Several fixes, but the one around line 190-199 is a critical bug-fix removing A LOT of crashes with the current OpenAI returned values. Sometimes the quotes are just not there and it fails.

Also added a couple of other less interesting things:

• Line 308-317 is a login-screen that allows me to make company-oriented content where my colleagues know the user_password that we share internally on the intranet. In a company-setting this is really important.

Also added ability to force Azure AI off, because I had the environment variables but did not want to use them.

Also hacked in the ability for the client to send a hidden "Hi!" (Hei in norwegian) message so that the robot/assistant starts with some message like: How can I help you today?

Sorry for mixing all these changes into one blob, but hope at least the bugfix can be incorporated!

[ryo-ma]

Thank you for PR.
Can you PR only about the bug?

[ryo-ma]

This is not accepted because it contains code specific to your project.