fix: missing node engine upgrade to 18 (#3552)

## About the changes
Updates frontend engine minimum version to node 18 and also improves
some messages in the release GHA task

.github/workflows/release.yaml

@@ -14,16 +14,21 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
-      - name: Publish to npm
+      - name: Setup to npm
         uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
           registry-url: 'https://registry.npmjs.org'
           cache: 'yarn'
-      - run: |
+      - name: Build
+        run: |
           yarn install --frozen-lockfile
           yarn --cwd ./frontend install --frozen-lockfile
-      - run: |
+          ls -l ./frontend
+          ls -l ./frontend/build
+          npm publish --dry-run
+      - name: Publish to npm
+        run: |
           LATEST=$(npm show unleash-server version)
           TAG=$(node scripts/npm-tag.js $LATEST)
           npm publish --tag ${TAG:-latest}

frontend/package.json

@@ -7,7 +7,7 @@
     "build/"
   ],
   "engines": {
-    "node": ">=14"
+    "node": ">=18"
   },
   "scripts": {
     "build": "vite build",

package.json

@@ -11,7 +11,9 @@
   "files": [
     "dist",
     "docs",
-    "frontend/build"
+    "frontend/build",
+    "frontend/index.js",
+    "frontend/package.json"
   ],
   "repository": {
     "type": "git",