Disable transition buttons when they are not needed

ARMS-289 #Done
Reorder options of Level of Access

in Additional information section of Allocation details tab by
moving the second option to top.

ARMS-276 #Done
Add tooltip to submit button of draft

ARMS-296 #Done
Add Clear button to datepicker widget
Enable clearing dates in ingest milestones section

of section Section 4: Storage requirements of request form
ARMS-264 #Done