fix: eslint errors

.eslintrc.js

@@ -1,30 +1,27 @@
 module.exports = {
-  "env": {
-      "browser": true,
-      "es6": true
+  env: {
+    browser: true,
+    es6: true
   },
-  "extends": [
-      'plugin:@newrelic/eslint-plugin-newrelic/react',
-      'plugin:@newrelic/eslint-plugin-newrelic/jest',
-      'plugin:@newrelic/eslint-plugin-newrelic/prettier'
+  extends: [
+    'plugin:@newrelic/eslint-plugin-newrelic/react',
+    'plugin:@newrelic/eslint-plugin-newrelic/jest',
+    'plugin:@newrelic/eslint-plugin-newrelic/prettier'
   ],
-  "globals": {
-      "Atomics": "readonly",
-      "SharedArrayBuffer": "readonly"
+  globals: {
+    Atomics: 'readonly',
+    SharedArrayBuffer: 'readonly'
   },
-  "parser": "babel-eslint",
-  "parserOptions": {
-      "ecmaFeatures": {
-          "jsx": true
-      },
-      "ecmaVersion": 2018,
-      "sourceType": "module"
+  parser: 'babel-eslint',
+  parserOptions: {
+    ecmaFeatures: {
+      jsx: true
+    },
+    ecmaVersion: 2018,
+    sourceType: 'module'
   },
-  "plugins": [
-      "react",
-      "prettier"
-  ],
-  "rules": {
-      "prettier/prettier": "error"
+  plugins: ['react', 'prettier'],
+  rules: {
+    'prettier/prettier': 'error'
   }
-};
+};

components/incidents/incident-timeline.js

@@ -24,8 +24,8 @@ export default class IncidentTimeline extends React.PureComponent {
           dateInnerStyle={{
             background: this.backgroundColors[incident.impact]
           }}
-          key={`${index}`}
-          dateText={`${date.toDateString()}`}
+          key={index}
+          dateText={date.toDateString()}
         >
           <IndIncident incident={incident} />
         </TimelineItem>