Add missing build:web script for GH Pages workflow

Author: gcclinux

package.json

@@ -9,6 +9,7 @@
     "setup-https": "./setup-https.sh",
     "setup-https-windows": "powershell -ExecutionPolicy Bypass -File ./setup-https.ps1",
     "build": "tsc && vite build && node scripts/copy-metadata.js",
+    "build:web": "tsc && vite build --outDir dist-web",
     "postbuild": "node scripts/copy-metadata.js",
     "preview": "vite preview --port 3024",
     "test": "jest",