Updating package.json and adding eslint + jest

.eslintignore

@@ -0,0 +1,9 @@
+dist/
+docs/
+node_modules/
+public/
+scripts/
+src/stories/
+
+jest.config.js
+webpack.config.js

.eslintrc.js

@@ -0,0 +1,24 @@
+module.exports = {
+    parser: '@typescript-eslint/parser',
+    parserOptions: {
+        ecmaVersion: 2020,
+        sourceType: 'module',
+        ecmaFeatures: {
+            jsx: true
+        }
+    },
+    settings: {
+        browser: true,
+        jest: true,
+        react: {
+            version: 'detect'
+        }
+    },
+    extends: [
+        'plugin:@typescript-eslint/recommended'
+    ],
+    rules: {
+        // Place to specify ESLint rules. Can be used to overwrite rules specified from the extended configs
+        // e.g. "@typescript-eslint/explicit-function-return-type": "off",
+    }
+};