docs: fixup WebUSB fiddle (#37754)

docs: fixup WebUSB fiddle (#37455)

docs: fixup webusb fiddle
(cherry picked from commit 0d3aee26b9e653e27ae6fe9d28586fd0a87fe2a7)

docs/fiddles/features/web-usb/main.js

@@ -1,5 +1,4 @@
 const {app, BrowserWindow} = require('electron')
-const e = require('express')
 const path = require('path')
 
 function createWindow () {
@@ -44,7 +43,6 @@ function createWindow () {
     }
   })
 
-  
   mainWindow.webContents.session.setDevicePermissionHandler((details) => {
     if (details.deviceType === 'usb' && details.origin === 'file://') {
       if (!grantedDeviceThroughPermHandler) {        

docs/fiddles/features/web-usb/renderer.js

@@ -1,5 +1,5 @@
 function getDeviceDetails(device) {
-  return grantedDevice.productName || `Unknown device ${grantedDevice.deviceId}`
+  return device.productName || `Unknown device ${device.deviceId}`
 }
 
 async function testIt() {