chore: Upgrade Prettier 1.8 -> 2.0 (#1436)

app/components/Time.js

@@ -9,14 +9,14 @@ let callbacks = [];
 // This is a shared timer that fires every minute, used for
 // updating all Time components across the page all at once.
 setInterval(() => {
-  callbacks.forEach(cb => cb());
+  callbacks.forEach((cb) => cb());
 }, 1000 * 60);
 
 function eachMinute(fn) {
   callbacks.push(fn);
 
   return () => {
-    callbacks = callbacks.filter(cb => cb !== fn);
+    callbacks = callbacks.filter((cb) => cb !== fn);
   };
 }