message: fix(tooltip): flickering when hover the mouse
diff: @@ -20,6 +20,7 @@ import { isBs3 } from '../utils/theme-provider';
  `
  :host.tooltip {
  display: block;
  + pointer-events: none;
  }
  :host.bs-tooltip-top .arrow, :host.bs-tooltip-bottom .arrow {
  left: 50%;
  