Upgrade frontend dependencies

package.json

@@ -5,11 +5,11 @@
   "main": "",
   "dependencies": {},
   "devDependencies": {
-    "@babel/core": "^7.6.0",
-    "@babel/plugin-transform-runtime": "^7.6.0",
-    "@babel/preset-env": "^7.6.0",
-    "@babel/register": "^7.6.0",
-    "@babel/runtime": "^7.6.0",
+    "@babel/core": "^7.6.2",
+    "@babel/plugin-transform-runtime": "^7.6.2",
+    "@babel/preset-env": "^7.6.2",
+    "@babel/register": "^7.6.2",
+    "@babel/runtime": "^7.6.2",
     "babel-eslint": "^10.0.3",
     "babel-loader": "^8.0.6",
     "clean-webpack-plugin": "^3.0.0",
@@ -18,7 +18,7 @@
     "eslint": "^6.4.0",
     "eslint-config-prettier": "^6.3.0",
     "eslint-loader": "^2.2.1",
-    "eslint-plugin-prettier": "^3.1.0",
+    "eslint-plugin-prettier": "^3.1.1",
     "eslint-plugin-vue": "^5.2.3",
     "file-loader": "^4.2.0",
     "html-loader": "^0.5.5",
@@ -37,10 +37,10 @@
     "vue-loader": "^15.7.1",
     "vue-template-compiler": "^2.6.10",
     "webapp-webpack-plugin": "^2.7.1",
-    "webpack": "^4.40.2",
-    "webpack-cli": "^3.3.8",
-    "webpack-manifest-plugin": "^2.0.4",
-    "xterm": "^4.0.1",
+    "webpack": "^4.41.0",
+    "webpack-cli": "^3.3.9",
+    "webpack-manifest-plugin": "^2.1.1",
+    "xterm": "^4.0.2",
     "xterm-addon-fit": "^0.2.1",
     "xterm-addon-web-links": "^0.2.1"
   },