src/vs/workbench/contrib/terminal/browser/terminalTabbedView.ts/TerminalTabbedView/_updateHasText
class TerminalTabbedView:	private _updateHasText() {
		const hasText = this._tabListElement.clientWidth > TerminalTabsListSizes.MidpointViewWidth;
		this._tabContainer.classList.toggle('has-text', hasText);
		this._terminalIsTabsNarrowContextKey.set(!hasText);
	}