Fixed flash of "No members" state when opening publish menu

no issue

- removed the count task state from the `disableEmailOption` getter so it doesn't get used to show the "Add members" notification before the count request has finished

app/components/gh-publishmenu-draft.js

@@ -13,7 +13,7 @@ export default class GhPublishMenuDraftComponent extends Component {
     @service settings;
     @service store;
 
-    @tracked totalMemberCount = 0;
+    @tracked totalMemberCount = null;
 
     // used to set minDate in datepicker
     _minDate = null;
@@ -21,7 +21,7 @@ export default class GhPublishMenuDraftComponent extends Component {
 
     get disableEmailOption() {
         // TODO: remove owner or admin check when editors can count members
-        return this.session.user.isAdmin && (this.totalMemberCount === 0 || this.countTotalMembersTask.isRunning);
+        return this.session.user.isAdmin && (this.totalMemberCount === 0);
     }
 
     get showEmailSection() {