feat(org-chart): separate fixed and auto layout previews

packages/org-chart/src/styles/org-chart.css

@@ -5,6 +5,7 @@
 @import './org-chart-readonly.css';
 @import './org-chart-p3-summary.css';
 @import './employee-info-dialog.css';
+@import './org-chart-expanded.css';
 /* Standalone defaults are scoped to the shell; only OrgChart public variables
    inherit across the Shadow DOM boundary. No host HM Theme is required. */
 :host { display: block; min-width: 0; max-width: 100%; font: inherit; }