use first lodash function

Author: LEON12699

AutomaticClockOuts/clock_out.js

@@ -1,3 +1,4 @@
+const _ = require('lodash');
 const CosmosClient = require("@azure/cosmos").CosmosClient;
 const config = require("./config");
 const TimeEntry = require('./time_entry');
@@ -55,7 +56,7 @@ const doClockOut = async (context) => {
 
 const findUserEmail = (users, id) => {
   const user = users.find(user => user.objectId === id)
-  return user.otherMails[0]
+  return _.first(user.otherMails)
 }
 
 const findSlackUserId = (users,email)=>{