Edit Project button should be context aware

[zfi]

The 'Continue' button in the Edit Project dialog should be renamed to 'Save' and be inactive until an editable data element in the project details is changed.

When no elements are modified the 'Cancel' and 'Continue' buttons serve essentially the same function. When the project details are revised, there needs to be some visual feedback that a change has been detected. Further, when a change is detected and the 'Cancel' button is selected, the application should open a pop-up modal to ensure that the user wishes to discard the changes to the project details.