prettier 2

Summary:
Quick notes:

- This looks worse than it is. It adds mandatory parentheses to single argument lambdas. Lots of outrage on Twitter about it, personally I'm {emoji:1f937_200d_2642} about it.
- Space before function, e.g. `a = function ()` is now enforced. I like this because both were fine before.
- I added `eslint-config-prettier` to the config because otherwise a ton of rules conflict with eslint itself.

Close https://github.com/facebook/flipper/pull/915

Reviewed By: jknoxville

Differential Revision: D20594929

fbshipit-source-id: ca1c65376b90e009550dd6d1f4e0831d32cbff03

desktop/plugins/layout/Inspector.tsx

@@ -78,7 +78,7 @@ export default class Inspector extends Component<Props> {
     const elements: Array<Element> = Object.values(
       this.props.persistedState.AXelements,
     );
-    const focusedElement = elements.find(i =>
+    const focusedElement = elements.find((i) =>
       Boolean(
         i.data.Accessibility && i.data.Accessibility['accessibility-focused'],
       ),
@@ -115,7 +115,7 @@ export default class Inspector extends Component<Props> {
         nodes: Array<{id: ElementID; children: Array<ElementID>}>;
       }) => {
         const ids = nodes
-          .map(n => [n.id, ...(n.children || [])])
+          .map((n) => [n.id, ...(n.children || [])])
           .reduce((acc, cv) => acc.concat(cv), []);
         this.invalidate(ids);
       },
@@ -279,7 +279,7 @@ export default class Inspector extends Component<Props> {
           selected: false,
         },
       );
-      elements.forEach(e => this.updateElement(e.id, e));
+      elements.forEach((e) => this.updateElement(e.id, e));
       return elements;
     } else {
       return [];
@@ -287,7 +287,7 @@ export default class Inspector extends Component<Props> {
   }
 
   async getAndExpandPath(path: Array<ElementID>) {
-    await Promise.all(path.map(id => this.getChildren(id, {})));
+    await Promise.all(path.map((id) => this.getChildren(id, {})));
     this.onElementSelected(path[path.length - 1]);
   }
 
@@ -312,9 +312,9 @@ export default class Inspector extends Component<Props> {
     if (shouldExpand) {
       this.updateElement(id, {expanded: shouldExpand});
     }
-    this.getChildren(id, {}).then(children => {
+    this.getChildren(id, {}).then((children) => {
       if (deep) {
-        children.forEach(child =>
+        children.forEach((child) =>
           this.onElementExpanded(child.id, deep, shouldExpand),
         );
       }