docs: add Menu module tutorials (#47761)

* docs: add `Menu` module tutorials

* link API docs to new tutorials

* removed unreferenced fiddles

* add wording for new types

* fix import sort errors

* delete accelerator.md

* fixes

Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: Erick Zhao <ezhao@slack-corp.com>

docs/fiddles/menus/dock-menu/main.js

@@ -0,0 +1,46 @@
+const { app, BrowserWindow, Menu } = require('electron/main')
+const { shell } = require('electron/common')
+
+function createWindow () {
+  const win = new BrowserWindow()
+  win.loadFile('index.html')
+}
+
+function closeAllWindows () {
+  const wins = BrowserWindow.getAllWindows()
+  for (const win of wins) {
+    win.close()
+  }
+}
+
+app.whenReady().then(() => {
+  createWindow()
+
+  const dockMenu = Menu.buildFromTemplate([
+    {
+      label: 'New Window',
+      click: () => { createWindow() }
+    },
+    {
+      label: 'Close All Windows',
+      click: () => { closeAllWindows() }
+    },
+    {
+      label: 'Open Electron Docs',
+      click: () => {
+        shell.openExternal('https://electronjs.org/docs')
+      }
+    }
+    // add more menu options to the array
+  ])
+
+  app.dock.setMenu(dockMenu)
+
+  app.on('activate', function () {
+    if (BrowserWindow.getAllWindows().length === 0) createWindow()
+  })
+})
+
+app.on('window-all-closed', function () {
+  if (process.platform !== 'darwin') app.quit()
+})