docs: add Menu module tutorials (#47268)

* 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

docs/fiddles/menus/context-menu/web-contents/main.js

@@ -0,0 +1,32 @@
+const { app, BrowserWindow, Menu } = require('electron/main')
+
+function createWindow () {
+  const win = new BrowserWindow()
+  // highlight-start
+  const menu = Menu.buildFromTemplate([
+    { role: 'copy' },
+    { role: 'cut' },
+    { role: 'paste' },
+    { role: 'selectall' }
+  ])
+  win.webContents.on('context-menu', (_event, params) => {
+    // only show the context menu if the element is editable
+    if (params.isEditable) {
+      menu.popup()
+    }
+  })
+  // highlight-end
+  win.loadFile('index.html')
+}
+
+app.whenReady().then(() => {
+  createWindow()
+
+  app.on('activate', function () {
+    if (BrowserWindow.getAllWindows().length === 0) createWindow()
+  })
+})
+
+app.on('window-all-closed', function () {
+  if (process.platform !== 'darwin') app.quit()
+})