minor [[treechat update]], you can resize images with ! res…

minor [[treechat update]], you can resize images with ! resize 250x250 now. the last image in the thread to the size you put in. (you can also leave one side blank to have it figure the other dimension out automatically, eg ! resize 250x would make it 250px wide and will figure out the right height on it's own. you can paste in a link to another treechat message to to resize an image from another threadhandy when an image is too big to go on chain