Creating Project Task does not update project lastModifiedDateTime

[Gabriel Acosta]

Problem:
When creatig a project task in the project task view in Visma.net and linking it to a project the projects lastModifiedDateTime is not updated. This causes a problem when using the lastModifiedDateTime in the API because we do not get the new project task when syncing. 

Expected Behavior:
Same behavior as when you create a task directly from the Project page THEN it seems to update lastModifiedDateTime correctly.

Solves:
Our sync problems caused by using lastModifiedDateTime. Today we have chosen to not use lastModifiedDateTime which makes us do a lot more requests towards Visma.net API. It would benefit both Visma.net and us to fix this.

ScreenId=PM3020PL (Creating & Linking from here it does not update lastModifiedDateTime)

ScreenId=PM301000 (Creating from here updates lastModifiedDateTime correctly)