make default breakouts expiration time 15 mins, not 15 sec

bigbluebutton-html5/imports/api/breakouts/server/handlers/breakoutStarted.js

@@ -4,6 +4,8 @@ import { check } from 'meteor/check';
 import flat from 'flat';
 
 export default function handleBreakoutRoomStarted({ body }, meetingId) {
+  const DEFAULT_TIME_REMAINING = 15 * 60; // 15 minutes default breakout time
+
   const {
     parentMeetingId,
     breakout,
@@ -11,8 +13,6 @@ export default function handleBreakoutRoomStarted({ body }, meetingId) {
 
   const { breakoutId } = breakout;
 
-  const timeRemaining = 15;
-
   check(meetingId, String);
 
   const selector = {
@@ -22,7 +22,7 @@ export default function handleBreakoutRoomStarted({ body }, meetingId) {
   const modifier = {
     $set: Object.assign(
       { users: [] },
-      { timeRemaining: Number(timeRemaining) },
+      { timeRemaining: DEFAULT_TIME_REMAINING },
       { parentMeetingId },
       flat(breakout),
     ),