templates: ensure blank template installs matching react-dom version (#13757)

Currently, in fresh installations, pnpm may install react-dom version
19.1.1, which will throw an error as it does not match the react version
it installs (19.1.0)

---
- To see the specific tasks where the Asana app for GitHub is being
used, see below:
  - https://app.asana.com/0/0/1211306293437538

pnpm-lock.yaml

@@ -1708,6 +1708,9 @@ importers:
       react:
         specifier: 19.1.0
         version: 19.1.0
+      react-dom:
+        specifier: 19.1.0
+        version: 19.1.0(react@19.1.0)
       sharp:
         specifier: 0.34.2
         version: 0.34.2

templates/blank/package.json

@@ -29,6 +29,7 @@
     "next": "15.4.4",
     "payload": "workspace:*",
     "react": "19.1.0",
+    "react-dom": "19.1.0",
     "sharp": "0.34.2"
   },
   "devDependencies": {