Fix addValueSet in project_questions

[jochenklar]

Run refresh check, progress and navigation update, and conditions check when a new value set is added.

This PR adds updateProgress and updateView to service.js. The idea is, that:

• updateProgress is called on each service.save and service.addValueSet and service.removeValueSet, and
• updateView on service.save, but only when service.initView is not called. It contains the check if an optionset needs a refresh, the update of the navigation, and the re-evaluation of the conditions (and was named postSave for a few days).

[jochenklar]

Bonus track: the last commit allow to use the navigation when a validation error ist triggered.

[MyPyDavid]

thanks for the fixes!