Merge pull request #22539 from fshowalter/patch-3

Allow @types/react 18 as a peer dep for @backstage/theme

packages/frontend-plugin-api/package.json

@@ -28,7 +28,7 @@
     "@backstage/types": "workspace:^",
     "@backstage/version-bridge": "workspace:^",
     "@material-ui/core": "^4.12.4",
-    "@types/react": "^16.13.1 || ^17.0.0",
+    "@types/react": "^16.13.1 || ^17.0.0 || ^18.0.0",
     "lodash": "^4.17.21",
     "zod": "^3.22.4",
     "zod-to-json-schema": "^3.21.4"