Fix missing import

src/renderer/ipc/DownloadIPC.js

@@ -1,5 +1,6 @@
 const Constants = require('../../constants');
 const helpers = require('../../helpers');
+const path = require('path');
 
 const addListeners = (ipcMain, standardIPCReply) => {
   ipcMain.on(Constants.IPC_Download_File, (event, data) => {