Merge pull request #23528 from AdityaK60/Update_plugin_rollbar

Added Material UI 4 import rule to plugins/rollbar

.changeset/early-monkeys-drive.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-rollbar': patch
+---
+
+Adjusted MUI imports for better tree shaking.

plugins/rollbar/.eslintrc.js

@@ -1 +1,5 @@
-module.exports = require('@backstage/cli/config/eslint-factory')(__dirname);
+module.exports = require('@backstage/cli/config/eslint-factory')(__dirname, {
+  rules: {
+    '@backstage/no-top-level-material-ui-4-imports': 'error',
+  },
+});

plugins/rollbar/src/components/RollbarTopItemsTable/RollbarTopItemsTable.tsx

@@ -14,8 +14,9 @@
  * limitations under the License.
  */
 
-import { Box, Typography } from '@material-ui/core';
-import { Alert } from '@material-ui/lab';
+import Box from '@material-ui/core/Box';
+import Typography from '@material-ui/core/Typography';
+import Alert from '@material-ui/lab/Alert';
 import React from 'react';
 import {
   RollbarFrameworkId,