fixup! feat: Add slot for whole application

Author: xitij2000

src/index.jsx

@@ -2,8 +2,7 @@ import {
   APP_INIT_ERROR, APP_READY, subscribe, initialize, mergeConfig, getConfig, getPath,
 } from '@edx/frontend-platform';
 import { AppProvider, ErrorPage } from '@edx/frontend-platform/react';
-import { PluginSlot } from '@openedx/frontend-plugin-framework';
-import { AuthoringAppSlot } from "CourseAuthoring/plugin-slots/AuthoringAppSlot";
+import { AuthoringAppSlot } from 'CourseAuthoring/plugin-slots/AuthoringAppSlot';
 import React, { StrictMode, useEffect } from 'react';
 import { createRoot } from 'react-dom/client';
 import {