Add prepublishOnly script to package.json for build process

Author: thetarnav

package.json

@@ -30,7 +30,8 @@
     "test:client": "vitest",
     "test:ssr": "pnpm run test:client --mode ssr",
     "test": "concurrently pnpm:test:*",
-    "format": "prettier -w **/*.{js,ts,json,css,tsx,jsx} --ignore-path .gitignore"
+    "format": "prettier -w **/*.{js,ts,json,css,tsx,jsx} --ignore-path .gitignore",
+    "prepublishOnly": "pnpm build"
   },
   "devDependencies": {
     "@astrojs/solid-js": "^2.2.0",