fix activitybarPart import error

src/vs/workbench/browser/parts/activitybar/activitybarPart.ts

@@ -5,7 +5,7 @@
 
 import 'vs/css!./media/activitybarpart';
 import * as nls from 'vs/nls';
-import { ActionsOrientation, ActionBar, Separator } from 'vs/base/browser/ui/actionbar/actionbar';
+import { ActionsOrientation, ActionBar } from 'vs/base/browser/ui/actionbar/actionbar';
 import { GLOBAL_ACTIVITY_ID, IActivity, ACCOUNTS_ACTIIVTY_ID } from 'vs/workbench/common/activity';
 import { Part } from 'vs/workbench/browser/part';
 import { GlobalActivityActionViewItem, ViewContainerActivityAction, PlaceHolderToggleCompositePinnedAction, PlaceHolderViewContainerActivityAction, AccountsActionViewItem, HomeAction, HomeActionViewItem, ACCOUNTS_VISIBILITY_PREFERENCE_KEY } from 'vs/workbench/browser/parts/activitybar/activitybarActions';
@@ -37,7 +37,7 @@ import { isWeb } from 'vs/base/common/platform';
 import { IStorageKeysSyncRegistryService } from 'vs/platform/userDataSync/common/storageKeys';
 import { Before2D } from 'vs/workbench/browser/dnd';
 import { Codicon, iconRegistry } from 'vs/base/common/codicons';
-import { Action } from 'vs/base/common/actions';
+import { Action, Separator } from 'vs/base/common/actions';
 import { Event } from 'vs/base/common/event';
 import { StandardKeyboardEvent } from 'vs/base/browser/keyboardEvent';
 import { KeyCode } from 'vs/base/common/keyCodes';