docs: remove references to remote from docs (#25416)

docs/fiddles/windows/manage-windows/manage-window-state/main.js

@@ -1,9 +1,20 @@
 // Modules to control application life and create native browser window
-const { app, BrowserWindow } = require('electron')
+const { app, BrowserWindow, ipcMain } = require('electron')
 
-// Keep a global reference of the window object, if you don't, the window will
-// be closed automatically when the JavaScript object is garbage collected.
-let mainWindow
+ipcMain.on('create-demo-window', (event) => {
+  const win = new BrowserWindow({ width: 400, height: 275 })
+
+  function updateReply() {
+    event.sender.send('bounds-changed', {
+      size: win.getSize(),
+      position: win.getPosition()
+    })
+  }
+
+  win.on('resize', updateReply)
+  win.on('move', updateReply)
+  win.loadURL('https://electronjs.org')
+})
 
 function createWindow () {
   // Create the browser window.
@@ -17,17 +28,6 @@ function createWindow () {
 
   // and load the index.html of the app.
   mainWindow.loadFile('index.html')
-
-  // Open the DevTools.
-  // mainWindow.webContents.openDevTools()
-
-  // Emitted when the window is closed.
-  mainWindow.on('closed', function () {
-    // Dereference the window object, usually you would store windows
-    // in an array if your app supports multi windows, this is the time
-    // when you should delete the corresponding element.
-    mainWindow = null
-  })
 }
 
 // This method will be called when Electron has finished