`Lectures`: Save input from guided modes only when last step is completed

[florian-glombik]

Is your feature request related to a problem?

For me the current flow of the guided mode for the lecture creation seems unintuitive as the changes are saved after the second step (Period) and Units have to be saved explicitly during the Guided Mode.

Describe the solution you'd like

I would expect the Guided Mode to act like a wizard that only saves when all steps are completed and I press the Finish (Create Lecture would then be a better naming) button.

Describe alternatives you've considered

Accepting the inconsistency

Additional context

No response

[florian-glombik]

Will be obsolete with the conversion of the guided mode to the "status bar creation approach"