message: fix(panel): improve smoothness when panel shows up
diff: }
  }
  - &.saladict-DictPanel-enter {
  - will-change: opacity, width, height;
  - transition: opacity 0.4s, width 0.4s, height 0.4s !important;
  - }
  -
  + &.saladict-DictPanel-enter,
  &.saladict-DictPanel-entering {
  will-change: opacity, width, height, left, top !important;
  transition: opacity 0.2s,
  