How can I clean the USB C Thunderbolt port of the studio display without damaging it since a small piece of trash seems to have gotten into one of the walls (see the white point)? There is no information in the Apple manuals. At the Apple Store they only told me to use a soft bristle brush because it doesn't generate static. I have seen others use a dental pick. Compressed air scares me because liquid can come out. Any concrete and sure idea?