Move rollup plugin to dev dependency

packages/client/package.json

@@ -35,7 +35,6 @@
     "downloadjs": "1.4.7",
     "leaflet": "^1.7.1",
     "regexparam": "^1.3.0",
-    "rollup-plugin-polyfill-node": "^0.8.0",
     "sanitize-html": "^2.7.0",
     "screenfull": "^6.0.1",
     "shortid": "^2.2.15",
@@ -52,6 +51,7 @@
     "postcss": "^8.2.10",
     "rollup": "^2.44.0",
     "rollup-plugin-json": "^4.0.0",
+    "rollup-plugin-polyfill-node": "^0.8.0",
     "rollup-plugin-postcss": "^4.0.0",
     "rollup-plugin-svelte": "^7.1.0",
     "rollup-plugin-svg": "^2.0.0",