message: fix(svg): 1) fix illegal value for `stroke-dasharray` attribute.
  2) use `opacity` attribute instead of CSS style property to enhance the compatibility.
diff: @@ -87,7 +87,7 @@ function bindStyle(svgEl: SVGElement, style: AllStyleOption, el?: Path | TSpan |
  // only set opacity. stroke and fill cannot be applied to svg image
  if (el instanceof ZRImage) {
  - svgEl.style.opacity = opacity + '';
  + attr(svgEl, 'opacity', opacity + '');
  return;
  }
  @@ -137,7 +137,7 @@ function bindStyle(svgEl: SVGElement, style: AllStyleOption, el?: Path | TSpan |
  attr(svgEl, 'stroke-dashoffset', (lineDashOffset || 0) + '');
  }
  else {
  - attr(svgEl, 'stroke-dasharray', '');
  + attr(svgEl, 'stroke-dasharray', NONE);
  }
  // PENDING
  