Re-running sapi init on an existing project with jwt type none adds email dependencies

If you run `sapi init` over an existing project, it should let you diff changes. If that project was setup with jwt type `none`, on the second `sapi init`, it inserts:
```
    "email-templates": "^3.2.0",
    "nodemailer": "^4.0.1",
    "@types/email-templates": "^3.1.0",
```
into `package.json`. It should not unless the user changed the jwt target to auth-authority.