feat(app): Decouple colorbar UI from service and enable action menu programatic control (#5018)

platform/core/src/types/DisplaySet.ts

@@ -16,6 +16,8 @@ export type DisplaySet = {
   label?: string;
   /** Flag indicating if this is an overlay display set (e.g., SEG, RTSTRUCT) */
   isOverlayDisplaySet?: boolean;
+  /** flag indicating if it supports window level */
+  supportsWindowLevel?: boolean;
 
   // Details about how to display:
   /**