Added node-sass to dependencies

package.json

@@ -29,6 +29,7 @@
     "build-bundle": "vue-cli-service build --target lib --name vue-share-buttons ./src/App.vue"
   },
   "dependencies": {
+    "node-sass": "^4.11.0",
     "sass-loader": "^7.1.0",
     "vue": "^2.6.6"
   },
@@ -41,7 +42,6 @@
     "eslint-config-prettier": "^4.1.0",
     "eslint-plugin-prettier": "^3.0.1",
     "eslint-plugin-vue": "^5.0.0",
-    "node-sass": "^4.11.0",
     "prettier": "^1.16.4",
     "vue-template-compiler": "^2.5.21"
   },