[docs-infra] Fix Search for v9 (#21874)

Author: dav-is

docs/next.config.ts

@@ -1,6 +1,7 @@
 import * as path from 'path';
 import * as fs from 'fs';
 import * as url from 'url';
+import * as semver from 'semver';
 import { createRequire } from 'module';
 import { BundleAnalyzerPlugin } from 'webpack-bundle-analyzer';
 import { withDeploymentConfig } from '@mui/internal-docs-infra/withDocsInfra';
@@ -81,6 +82,7 @@ export default withDeploymentConfig({
   env: {
     // docs-infra
     LIB_VERSION: pkg.version,
+    SEARCH_INDEX: `material-ui-v${semver.major(pkg.version)}`,
     SOURCE_CODE_REPO,
     SOURCE_GITHUB_BRANCH,
     GITHUB_TEMPLATE_DOCS_FEEDBACK: '6.docs-feedback.yml',

docs/package.json

@@ -89,6 +89,7 @@
     "rifm": "0.12.1",
     "rimraf": "catalog:",
     "rxjs": "^7.8.2",
+    "semver": "7.7.4",
     "styled-components": "^6.3.12",
     "stylis": "catalog:",
     "webpack-bundle-analyzer": "^5.2.0"
@@ -108,6 +109,7 @@
     "@types/nprogress": "^0.2.3",
     "@types/prop-types": "catalog:",
     "@types/react-dom": "catalog:",
+    "@types/semver": "catalog:",
     "@types/stylis": "4.2.7",
     "@types/webpack-bundle-analyzer": "4.7.0",
     "gm": "1.25.1",

package.json

@@ -79,7 +79,7 @@
     "@mui/internal-netlify-cache": "0.0.3-canary.2",
     "@mui/internal-test-utils": "catalog:",
     "@mui/material": "catalog:",
-    "@mui/monorepo": "github:mui/material-ui#310d80c5a551e55caf2211f15b4e30658703f114",
+    "@mui/monorepo": "github:mui/material-ui#3f1a6109bc249ce7c7ad4ae8531bbfb289afc42d",
     "@mui/utils": "catalog:",
     "@next/eslint-plugin-next": "16.2.1",
     "@octokit/plugin-retry": "8.0.3",