Add vue-css-grid dependency

Author: Phrancis

package.json

@@ -15,6 +15,7 @@
     "bootstrap-vue": "^2.0.0-rc.10",
     "vue": "^2.5.2",
     "vue-authenticate": "^1.3.4",
+    "vue-css-grid": "^1.0.1",
     "vue-router": "^3.0.1"
   },
   "devDependencies": {