message: fix(tooltip): close tooltip on escape or focusout
  ### Related Ticket(s)
  Fixes
  ### Description
  Adds `Escape` logic to the `keydown` listener and a new `focusout` listener. Both will toggle the state of the tooltip only in the "closed" direction
  ### Changelog
  **Changed**
  Accessibility improvements to tooltip
diff: @@ -42,11 +42,19 @@ class BXTooltip
  /**
  * Handles `click` event on this element.
  + *
  + * @param {undefined|boolean} forceState if set, will be cast to boolean and force tooltip to open or close.
  */
  @HostListener('click')
  // @ts-ignore: The decorator refers to this method but TS thinks this method is not referred to
  - private _handleClick = async () => {
  + private _handleClick = async (
  + forceState: undefined | boolean = undefined
  + ) => {
  + if (forceState === undefined) {
  this.open = !this.open;
  + } else {
  + this.open = Boolean(forceState);
  + }
  const { open, updateComplete } = this;
  if (open) {
  await updateComplete;
  @@ -57,15 +65,27 @@ class BXTooltip
  /**
  * Handles `keydown` event on this element.
  + * Space & enter will toggle state, Escape will only close.
  */
  @HostListener('keydown')
  // @ts-ignore: The decorator refers to this method but TS thinks this method is not referred to
  private _handleKeydown = async (event) => {
  - if (event.key === ' ' || event.key === 'Enter') {
  + if ([' ', 'Enter'].includes(event.key)) {
  this._handleClick();
  + } else if (event.key === 'Escape') {
  + this._handleClick(false);
  }
  };
  + /**
  + * Closes tooltip on `focusout` event
  + */
  + @HostListener('focusout')
  + // @ts-ignore: The decorator refers to this method but TS thinks this method is not referred to
  + private _handleFocusout = async () => {
  + this._handleClick(false);
  + };
  +
  /**
  * `true` if the dropdown should be open.
  */
  