Handle Generate Password in App.js

This issue should be resolved by creating handleGeneratePassword that:

if
not includeUpperCase and not includeLowerCase and not includeNumbers and not includeSymbols
then notify error

else
let characterList = ""
if includeNumbers is true
characterList = characterList + numbers
if includeUpperCase is true
characterList = characterList + upperCaseLetters
.
.
.
Set Password createPassword pass characterList
notify

Start in App.js and locate the password-generation controls, the createPassword call, and the existing notification behavior. Implement the handleGeneratePassword flow described in the issue, including the no-character-selection error and selected character groups, then verify that generation and notification work for each selection case.

Scritto dal modello di indicizzazione a partire dal testo della issue.