added custom titlebar to electron

main.js

@@ -1,4 +1,4 @@
-const { app, BrowserWindow } = require('electron');
+const { app, BrowserWindow, ipcMain } = require('electron');
 const { fork } = require('child_process');
 const path = require('path');
 
@@ -13,17 +13,23 @@ function createWindow() {
     win = new BrowserWindow({
         width: 1200,
         height: 800,
+        frame: false,
+        titleBarStyle: "hidden",
         webPreferences: {
+            preload: path.join(__dirname, "preload.js"),
             nodeIntegration: false,
-            contextIsolation: true,
+            contextIsolation: true
         }
     });
 
     win.setMenu(null);
-
     win.loadURL('http://localhost:3000');
 }
 
+ipcMain.on("win:minimize", () => win.minimize());
+ipcMain.on("win:maximize", () => win.maximize());
+ipcMain.on("win:close", () => win.close());
+
 app.whenReady().then(() => {
     startBackend();
     createWindow();