BUILD: Update npm invocation and install packages for dumper-companion

Author: lephilousophe

composer.json

@@ -41,7 +41,7 @@
     "build": [
       "composer install --no-dev",
       "@build-common",
-      "npm ci --production"
+      "npm ci --omit=dev"
     ],
     "build-dev": [
       "composer install",

package.json

@@ -9,7 +9,7 @@
     "sass": "1.78.0"
   },
   "scripts": {
-    "postinstall": "cd dumper-companion && npm run build && cd .. && node build.js",
+    "postinstall": "cd dumper-companion && npm ci --omit=dev && npm run build && cd .. && node build.js",
     "scss:watch": "sass --watch ./scss:./public_html/css"
   }
 }