move typescript to dev dependencies

Author: havvg

package-lock.json

@@ -9,7 +9,6 @@
   },
   "dependencies": {
     "rxjs": "^5.5.2",
-    "typescript": "^2.5.3",
     "vue": "^2.4.4",
     "vue-rx": "^5.0.0",
     "vuex": "^3.0.0"
@@ -24,6 +23,7 @@
     "node-sass": "^4.5.3",
     "sass-loader": "^6.0.6",
     "ts-loader": "^3.1.0",
+    "typescript": "^2.6.1",
     "vue-class-component": "^6.0.0",
     "vue-loader": "^13.0.5",
     "vue-property-decorator": "^6.0.0",