Student approval for modified and adjusted forms

[Karina-Agliullova]

Add student approval for modified and adjusted forms. Student approval should be implemented for adjustment forms. In the new workflow, both the student and the supervisor must approve the application before any changes are applied to the Labor Status Form.

[ali-ramazani]

@Karina-Agliullova, Can we list the useful relevant files for this feature?

[BrianRamsay]

Add student approval for modified and adjusted forms.