Allows users to send image in chat bar.
first version of 1.21.8, but it lacked some features now.
use Legacy Command Registry to register /chatimage command
Auto scale to perfect in imageInfo screen. Allow to limit max uploaded file size.
for neoforge 1.21.4
Chat Image mod 3.0.2 for neoforge 1.21.3.
fix some bugs.
the first version of neoforge 1.21
upload local image
