fix: deps - ensure previous users of browser-sync-client are not affected by new structure - fixes #1615

Author: shakyShane

packages/browser-sync-client/package-lock.json

@@ -42,6 +42,8 @@
   },
   "keywords": [],
   "dependencies": {
+    "etag": "1.8.1",
+    "fresh": "0.5.2",
     "mitt": "^1.1.3",
     "rxjs": "^5.5.6"
   },