Use Prettier JS (#5017)

* Adds prettier

* Run lint before tests

spec/ParseWebSocketServer.spec.js

@@ -1,7 +1,7 @@
-const ParseWebSocketServer = require('../lib/LiveQuery/ParseWebSocketServer').ParseWebSocketServer;
+const ParseWebSocketServer = require('../lib/LiveQuery/ParseWebSocketServer')
+  .ParseWebSocketServer;
 
 describe('ParseWebSocketServer', function() {
-
   beforeEach(function(done) {
     // Mock ws server
     const EventEmitter = require('events');
@@ -16,11 +16,15 @@ describe('ParseWebSocketServer', function() {
     const onConnectCallback = jasmine.createSpy('onConnectCallback');
     const http = require('http');
     const server = http.createServer();
-    const parseWebSocketServer = new ParseWebSocketServer(server, onConnectCallback, 5).server;
+    const parseWebSocketServer = new ParseWebSocketServer(
+      server,
+      onConnectCallback,
+      5
+    ).server;
     const ws = {
       readyState: 0,
       OPEN: 0,
-      ping: jasmine.createSpy('ping')
+      ping: jasmine.createSpy('ping'),
     };
     parseWebSocketServer.emit('connection', ws);
 
@@ -31,10 +35,10 @@ describe('ParseWebSocketServer', function() {
       expect(ws.ping).toHaveBeenCalled();
       server.close();
       done();
-    }, 10)
+    }, 10);
   });
 
-  afterEach(function(){
+  afterEach(function() {
     jasmine.restoreLibrary('ws', 'Server');
   });
 });