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/navigation/util/uri.tsx

@@ -25,10 +25,7 @@ export const filterOptionalParameters = (uri: string) => {
 
 export const parseURIParameters = (query: string) => {
   // get parameters from query string and store in Map
-  const parameters = query
-    .split('?')
-    .splice(1)
-    .join('');
+  const parameters = query.split('?').splice(1).join('');
   const parametersObj = querystring.parse(parameters);
   const parametersMap = new Map<string, string>();
   for (const key in parametersObj) {