src/vs/workbench/browser/parts/banner/bannerPart.ts/BannerPart/focusActionLink
class BannerPart:	private focusActionLink(): void {
		const length = this.item?.actions?.length ?? 0;

		if (this.focusedActionIndex < length) {
			const actionLink = this.messageActionsContainer?.children[this.focusedActionIndex];
			if (actionLink instanceof HTMLElement) {
				this.actionBar?.setFocusable(false);
				actionLink.focus();
			}
		} else {
			this.actionBar?.focus(0);
		}
	}