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/network/ManageMockResponsePanel.tsx

@@ -200,7 +200,7 @@ export function ManageMockResponsePanel(props: Props) {
           multiline={true}
           columnSizes={ColumnSizes}
           columns={Columns}
-          rows={_buildRows(routes, duplicatedIds, id => {
+          rows={_buildRows(routes, duplicatedIds, (id) => {
             networkRouteManager.removeRoute(id);
             setSelectedId(null);
           })}
@@ -208,7 +208,7 @@ export function ManageMockResponsePanel(props: Props) {
           autoHeight={false}
           floating={false}
           zebra={false}
-          onRowHighlighted={selectedIds => {
+          onRowHighlighted={(selectedIds) => {
             const newSelectedId =
               selectedIds.length === 1 ? selectedIds[0] : null;
             setSelectedId(newSelectedId);