Obscure API key in project settings window

[ndporter]

Is your feature request related to a problem? Please describe.
I teach workshops on QualCoder and demonstrate project settings options during those workshops. During the first workshop I taught after setting up AI, my API key (blabador) was on display for all to see (and we keep recordings for participants, so also in the video). It was expired so it was ok, but it would be nice not to have to worry about.

Describe the solution you'd like
Obscure the API key on the main project settings page until you click into the field to change it.

Describe alternatives you've considered
Move the API key within the Advanced AI options submenu so it won't show on the main settings. This would be an improvement but would still prevent showing the AI settings submenu in demos.

Additional context
No screenshot (because my API key would be on display).

[ccbogel]

OK I have updated the code. so the lineedit widget is set to password mode. You will not see the actual text.

[kaixxx]

the lineedit widget is set to password mode

That's a good idea. But it would make it impossible for users to check if they have entered the right API key. So, i've added a small "eye" button to reveal the actual key:

@ccbogel: I hope you are OK with that. Otherwise, delete 7c3420f

Thank you for the suggestion, @ndporter. I've had the same problem in the past when giving workshops for QualCoder. I think we can close this now.