fix(jsx-email): make react-dom a peerDep, allow v18 in range (#290)

Author: shellscape

.github/workflows/test-v18.yml

@@ -34,9 +34,9 @@ jobs:
       - name: Install React v18
         run: |
           cd packages/jsx-email
-          pnpm add react@^18
+          pnpm add react@^18 react-dom@18
           cd ../create-jsx-email
-          pnpm add react@^18
+          pnpm add react@^18 react-dom@18
 
       - name: Build Projects
         run: |

packages/jsx-email/package.json

@@ -66,7 +66,8 @@
     "@jsx-email/plugin-inline": "workspace:^",
     "@jsx-email/plugin-minify": "workspace:^",
     "@jsx-email/plugin-pretty": "workspace:^",
-    "react": "^18.2.0 || ^19"
+    "react": "^18.2.0 || ^19",
+    "react-dom": "^18.2.0 || ^19"
   },
   "dependencies": {
     "@dot/log": "^0.1.5",
@@ -106,7 +107,6 @@
     "postcss": "^8.4.32",
     "postcss-var-replace": "^1.0.0",
     "pretty-bytes": "^6.1.1",
-    "react-dom": "^19",
     "react-router-dom": "7.0.1",
     "rehype": "^13.0.1",
     "rehype-stringify": "^10.0.0",