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/app/src/ui/components/Tabs.tsx

@@ -27,7 +27,7 @@ const TabListItem = styled.div<{
   active?: boolean;
   width?: WidthProperty<number>;
   container?: boolean;
-}>(props => ({
+}>((props) => ({
   background: props.container
     ? props.active
       ? 'linear-gradient(to bottom, #67a6f7 0%, #0072FA 100%)'
@@ -251,7 +251,7 @@ export default function Tabs(props: {
           {comp.props.label}
           {closable && (
             <CloseButton // eslint-disable-next-line react/jsx-no-bind
-              ref={ref => (closeButton = ref)} // eslint-disable-next-line react/jsx-no-bind
+              ref={(ref) => (closeButton = ref)} // eslint-disable-next-line react/jsx-no-bind
               onMouseDown={() => {
                 if (isActive && onActive) {
                   const index = keys.indexOf(key);