message: Make terminal emulation columns match the renderer
diff: @@ -817,7 +817,7 @@ export class TerminalViewer extends ViewerElement implements SupportsClipboardPa
  }
  const computedStyle = window.getComputedStyle(this);
  - const width = widthPixels - px(computedStyle.marginLeft) - px(computedStyle.marginRight) - 4;
  + const width = widthPixels - px(computedStyle.marginLeft) - px(computedStyle.marginRight);
  const newCols = Math.floor(width / charWidth);
  const newRows = Math.max(2, Math.floor(heightPixels / charHeight));
  