Convert UTF-8 nfd to nfc WHEN adding files into a folder on MacOS

1. when adding files into a folder

/usr/local/bin/convmv -f utf8 -t utf8 --nfc --notest -r /Users/dee/Downloads/

2. select a folder then convert

/usr/local/bin/convmv -f utf8 -t utf8 --nfc --notest -r "$1"