This is a diff to show what's going on when I try to just add an svg as an image. Attaching a screenshot. But, it's looking like the extended arrow isn't the same width, arrow thickness, or shape as the original arrow. I tried updating both the svg view box and height + width properties without much luck.
{F45278}
Update 4/26/2022
Made some progress here, and it's pretty close to the design.
I need to adjust the size of the chat thread item in another diff. Additonally, the arrows need to be cut down by like 2-3px.
{F46121}