added eslint, some cleanup and fetch in english

package.json

@@ -1,19 +1,16 @@
 {
     "name": "maanteeamet-fetch",
     "version": "1.0.0",
-    "description": "",
     "main": "index.js",
     "scripts": {
         "start": "nodemon --watch src --exec babel-node src/index.js"
     },
-    "author": "",
-    "license": "ISC",
     "dependencies": {
         "cacheman": "2.2.1",
         "cacheman-file": "0.2.1",
         "jsdom": "16.2.2",
         "node-fetch": "2.6.0",
-        "puppeteer": "^3.1.0"
+        "puppeteer": "3.1.0"
     },
     "devDependencies": {
         "@babel/cli": "7.8.4",
@@ -21,6 +18,13 @@
         "@babel/node": "7.8.7",
         "@babel/plugin-proposal-class-properties": "7.8.3",
         "@babel/preset-env": "7.9.6",
+        "babel-eslint": "^10.1.0",
+        "eslint": "^6.8.0",
+        "eslint-config-airbnb": "18.1.0",
+        "eslint-plugin-import": "2.20.2",
+        "eslint-plugin-jsx-a11y": "6.2.3",
+        "eslint-plugin-react": "7.20.0",
+        "eslint-plugin-react-hooks": "2.5.0",
         "nodemon": "2.0.4"
     }
 }