chore: Upgrading dependencies in chat example

.gitignore

@@ -10,6 +10,9 @@
 /eliasdb
 /examples/tutorial/run/
 /examples/chat/run/
+/examples/chat/res/chat/*.lock
+/examples/chat/res/chat/*-lock.json
+/examples/chat/res/chat/node_modules
 /examples/data-mining/docker-images/eliasdb/eliasdb
 /examples/data-mining/docker-images/frontend/app/node_modules
 /examples/data-mining/docker-images/frontend/app/graphiql

examples/chat/res/chat/dist/chat.js.LICENSE.txt

@@ -0,0 +1,11 @@
+/*!
+ * 
+ *  EliasDB - Chat example
+ *
+ *  Copyright 2019 Matthias Ladkau. All rights reserved.
+ *
+ *  This Source Code Form is subject to the terms of the Mozilla Public
+ *  License, v. 2.0. If a copy of the MPL was not distributed with this
+ *  file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */

examples/chat/res/chat/package.json

@@ -11,19 +11,19 @@
   "author": "Matthias Ladkau",
   "license": "ISC",
   "devDependencies": {
-    "@typescript-eslint/eslint-plugin": "^1.13.0",
-    "@typescript-eslint/parser": "^1.13.0",
-    "css-loader": "^3.1.0",
-    "eslint": "^6.1.0",
-    "eslint-config-prettier": "^6.0.0",
-    "eslint-plugin-prettier": "^3.1.0",
-    "prettier": "^1.18.2",
-    "ts-loader": "^6.0.4",
-    "typescript": "^3.5.3",
-    "vue": "^2.6.10",
-    "vue-loader": "^15.7.1",
-    "vue-template-compiler": "^2.6.10",
-    "webpack": "^4.39.1",
-    "webpack-cli": "^3.3.6"
+    "@typescript-eslint/eslint-plugin": "^4.8.2",
+    "@typescript-eslint/parser": "^4.8.2",
+    "css-loader": "^5.0.1",
+    "eslint": "^7.14.0",
+    "eslint-config-prettier": "^6.15.0",
+    "eslint-plugin-prettier": "^3.1.4",
+    "prettier": "^2.2.1",
+    "ts-loader": "^8.0.11",
+    "typescript": "^4.1.2",
+    "vue": "^2.6.12",
+    "vue-loader": "^15.9.5",
+    "vue-template-compiler": "^2.6.12",
+    "webpack": "^5.9.0",
+    "webpack-cli": "^4.2.0"
   }
 }

examples/chat/res/chat/webpack.config.js

@@ -62,7 +62,7 @@ module.exports = {
   performance: {
     hints: false
   },
-  devtool: '#eval-source-map',
+  devtool: 'eval-source-map',
   plugins: [
     // make sure to include the plugin for the magic
     new VueLoaderPlugin(),