message: Correctly identify sticker picker widgets
  Widgets added to account data have the `type` of "m.widget", meaning we have to look at the `content.type` which will tell us what it is.
  This also fixes a bug where all user widgets become sticker picker widgets under the right conditions.
diff: @@ -58,8 +58,7 @@ function getUserWidgetsArray() {
  */
  function getStickerpickerWidgets() {
  const widgets = getUserWidgetsArray();
  - const stickerpickerWidgets = widgets.filter((widget) => widget.type='m.stickerpicker');
  - return stickerpickerWidgets;
  + return widgets.filter((widget) => widget.content && widget.content.type === "m.stickerpicker");
  }
  /**
  @@ -73,7 +72,7 @@ function removeStickerpickerWidgets() {
  }
  const userWidgets = client.getAccountData('m.widgets').getContent() || {};
  Object.entries(userWidgets).forEach(([key, widget]) => {
  - if (widget.type === 'm.stickerpicker') {
  + if (widget.content && widget.content.type === 'm.stickerpicker') {
  delete userWidgets[key];
  }
  });
  