fix: correct expanded subprocess icon

Author: miyuesc

lib/util/CreateOptionsUtil.js

@@ -483,7 +483,7 @@ export const SUBPROCESS = [
     label: 'Sub-process (expanded)',
     search: 'subprocess',
     actionName: 'expanded-subprocess',
-    className: 'bpmn-icon-subprocess-collapsed',
+    className: 'bpmn-icon-subprocess-expanded',
     target: {
       type: 'bpmn:SubProcess',
       isExpanded: true
@@ -614,4 +614,4 @@ export const CREATE_OPTIONS = [
   ...TYPED_BOUNDARY_EVENT,
   ...DATA_OBJECTS,
   ...PARTICIPANT
-];
+];