FIX [backend] when item priority changes move it in queue
Items that were not forcefully moved to the top
should change place on the waitlist as the result of
priority change.
FIX disallows adding patient to waitlist mutliple times
Dialogue displaying details of current entry is displayed
offering option to edit main complaint.
UPD default urgent status on adding to waitlist is No
ADD confirmation popup for adding to waitlist
FIX various visual problems and conformity with design prototype