message: show screen width/height in canvas status line
  fixes
diff: @@ -12,7 +12,7 @@ const FixedWidthCoord = (props: {
  const { axis, number, numberPixelWidth = 25 } = props;
  return (
  <div style={{display: 'flex', flexDirection:'row'}}>
  - <div style={{width: '15px', color:'var(--main-text-darker-color)'}}>{axis}:</div>
  + <div style={{color:'var(--main-text-darker-color)'}}>{axis}:</div>
  <div style={{width: `${numberPixelWidth}px`, color:'var(--main-text-color)'}}>{number}</div>
  </div>
  )
  @@ -64,11 +64,13 @@ export class CanvasStatusbar extends PureComponent<CanvasStatusbarProps> {
  cc = framebuf.framebuf[cp.row][cp.col].code;
  }
  }
  + const widthHeight = `${framebuf.width}x${framebuf.height}`
  return (
  <div style={{paddingTop: '4px', fontSize: '0.8em', display: 'flex', flexDirection:'row'}}>
  <FixedWidthCoord axis='X' number={cp !== null ? cp.col : null} />
  <FixedWidthCoord axis='Y' number={cp !== null ? cp.row : null} />
  - <FixedWidthCoord axis='C' number={formatScreencode(cc)} numberPixelWidth={40} />
  + <FixedWidthCoord axis='C' number={formatScreencode(cc)} numberPixelWidth={60} />
  + <FixedWidthCoord axis='Size' number={widthHeight} numberPixelWidth={40} />
  </div>
  )
  }
  