[Regression] Terminal returns wrong geometry

[jcubic]

Issue summary

width of the terminal returned in geometry don't take into account the scrollbar

Expected behavior

The main width of the terminal should include the scrollbar

Steps to reproduce

1. Open Terminal matching 3D image demo
2. move the right side points so the edge of the terminal is visible
3. The dots don't match the terminal box

Browser and OS

N/A

Additional notes

Maybe adding content: {width, height} will be a good idea