Disable Language Selector on Save and Publish When Only One Language is Configured

[Buhl93]

Reason:

• It is a lot of unnecessary extra clicks for editors, when there is no decision to make from the popup, ultimately degrading the user experience.

Suggestions:

• Ideally, the default behavior should be for the language selector not to appear when only one language is configured.
• Alternatively, a setting in the appsettings file could be introduced to allow deactivation of the popup.

[Luuk1983]

The content language selector above the content tree is gone when there is only one language, so I don't see a reason why the popup couldn't be skipped either. I like your idea :)