chore: Prepare package lock script (#113)

Author: georgylobko

package.json

@@ -35,7 +35,8 @@
     "build:themeable": "node scripts/themeable-source",
     "build:pages:vite": "vite build",
     "build:pages:tsc": "tsc -p pages/tsconfig.json",
-    "build:pages:bundle": "vite build -c vite.dev-pages.config.mjs"
+    "build:pages:bundle": "vite build -c vite.dev-pages.config.mjs",
+    "postinstall": "prepare-package-lock"
   },
   "exports": {
     ".": "./index.js",