chore(package.json): fix dependency (#5)

Author: FeliciousX

package-lock.json

@@ -18,13 +18,15 @@
   "license": "MIT",
   "devDependencies": {
     "cp-cli": "^1.0.2",
-    "cycle-onionify": "^4.0.0",
     "release-it": "^3.1.2",
     "typedoc": "^0.9.0",
     "typescript": "^2.5.3",
     "xstream": "^11.0.0"
   },
   "peerDependencies": {
     "xstream": "*"
+  },
+  "dependencies": {
+    "cycle-onionify": "^4.0.0"
   }
 }