Update Dropzone to 5.4.0 #fix 4766
Update Dropzone to 5.4.0
#fix 4766

Signed-off-by: Jessica González <52329a27ea5670aeec0efeeb0773bf1b4f1affa1@missallsunday.com>

StealthWombat/SMF2.1-more-forkery,StealthWombat/SMF2.1-more-forkery