message: fix(panel): disable external style reset on standalone panel
diff: -.saladict-external,
  -.saladict-panel {
  +.saladict-div,
  +.saladict-div > .saladict-external,
  +.saladict-div > .saladict-panel {
  display: block !important;
  width: 0 !important;
  height: 0 !important;
  