Migrate to use @inquirer/confirm

Prompts have been removed from `inquirer` since 10.0.0,
so we need to migrate our use of `inquirer.prompt` to the standalone
`confirm` prompt offered by `@inquirer/prompt`.

It does simplify the code a little as the prompt call now returns
the users answers, without having to give each prompt a name and picking the value
in an `answers` object.

The replacement has happened like for like, leaving the check for whether
being [run in a "text terminal"](https://nodejs.org/api/tty.html#tty) when asking
for the usage data, but not if changing port. It doesn't add any new test either.

Author: romaricpascal

lib/usage-data.js

@@ -4,7 +4,7 @@ const os = require('os')
 const path = require('path')
 
 // npm dependencies
-const inquirer = require('inquirer')
+const {default: confirm} = require('@inquirer/confirm')
 const universalAnalytics = require('universal-analytics')
 const { v4: uuidv4 } = require('uuid')
 const ansiColors = require('ansi-colors')
@@ -50,14 +50,13 @@ function setUsageDataConfig (usageDataConfig) {
 
 // Ask for permission to track data
 // returns a Promise with the user's answer
-function askForUsageDataPermission () {
-  return inquirer.prompt([{
-    name: 'usageData',
-    message: USAGE_DATA_PROMPT,
-    type: 'confirm',
-    when: () => process.stdout.isTTY,
-    default: false
-  }]).then(answers => answers.usageData)
+async function askForUsageDataPermission () {
+  if (process.stdout.isTTY) {
+    return confirm({
+      message: USAGE_DATA_PROMPT,
+      default: false
+    })
+  } 
 }
 
 function startTracking (usageDataConfig) {

lib/utils/index.js

@@ -7,7 +7,7 @@ const semver = require('semver')
 const { existsSync } = require('fs')
 
 // npm dependencies
-const inquirer = require('inquirer')
+const {default: confirm} = require('@inquirer/confirm')
 const portScanner = require('portscanner')
 const { marked } = require('marked')
 
@@ -108,12 +108,10 @@ function findAvailablePort (callback) {
       console.error('ERROR: Port ' + port + ' in use - you may have another prototype running.\n')
 
       // Ask user if they want to change port
-      inquirer.prompt([{
-        name: 'changePort',
+      confirm({
         message: 'Change to an available port?',
-        type: 'confirm'
-      }]).then(answers => {
-        if (answers.changePort) {
+      }).then(changePort => {
+        if (changePort) {
           // User answers yes
           port = availablePort