search: fix incorrect metadata due to inconsistent package name

According to the usual Backstage package naming
conventions, @backstage/plugin-search-backend-node
should be called @backstage/plugin-search-node.
Because of this mismatch, metadata was generated
incorrectly.

Adjust the metadata in all search packages to
include the node package, and fix the pluginId in
the node package itself.

Signed-off-by: MT Lewis <mtlewis@users.noreply.github.com>
Co-authored-by: Jack Palmer <jackpalmer@spotify.com>

plugins/search-react/package.json

@@ -5,10 +5,11 @@
     "role": "web-library",
     "pluginId": "search",
     "pluginPackages": [
-      "@backstage/plugin-search",
+      "@backstage/plugin-search-backend-node",
       "@backstage/plugin-search-backend",
       "@backstage/plugin-search-common",
-      "@backstage/plugin-search-react"
+      "@backstage/plugin-search-react",
+      "@backstage/plugin-search"
     ]
   },
   "publishConfig": {