fix: implement eslint

.eslintrc.js

@@ -0,0 +1,28 @@
+module.exports = {
+    env: {
+        browser: true,
+        es6: true
+    },
+    // extends: 'eslint:recommended',
+    extends: 'airbnb-base/legacy',
+    globals: {
+        Atomics: 'readonly',
+        SharedArrayBuffer: 'readonly'
+    },
+    parserOptions: {
+        ecmaVersion: 2018,
+        sourceType: 'module'
+    },
+    plugins: [
+        'svelte3'
+    ],
+    overrides: [
+        {
+            files: ['src/**/*.svelte'],
+            processor: 'svelte3/svelte3'
+        }
+    ],
+    rules: {
+
+    }
+};

.vscode/settings.json

@@ -0,0 +1,15 @@
+{
+  "eslint.autoFixOnSave": true,
+  "files.eol": "\n",
+  "files.associations": {
+    "*.svelte": "html"
+  },
+  "eslint.validate": [
+    "javascript",
+    "javascriptreact",
+    {
+      "language": "html",
+      "autoFix": true
+    }
+  ]
+}