Right now trying to fix dropdown positioning issue for appToolbarButton functionality.
The issue is that in usual gmail account there is no space to the right on app button to show dropdown.
some
this.sdk.Toolbars.addToolbarButtonForApp({
title: '',
iconUrl: chrome.runtime.getURL('images/test.png'),
onClick: async (e) => {
e.dropdown.setPlacementOptions({ position: 'top', forcePosition: true });
mountDropDownElement(e.dropdown.el);
},