P1B: Refactor (src/user/profile.js:341): Function with high complexity (count = 10): changePassword

### Uniqueness check

- [x] I have searched open issues and confirmed this **file + smell** is not already taken.

### Full path to the JavaScript file

src/user/profile.js

### Function(s)/scope targeted

User.changePassword

### Relevant Qlty output

```shell
src/user/profile.js
 341  Function with high complexity (count = 10): changePassword
```