Use new `PrivacyStore` method getPasswordStrengthScore and link it to the new password strength bar value.
Used backend/general to call to `status-go` method and services/general to define the common `GetPasswordStrengthScore` service.
Added onboarding chain to get password strength score information from `OnboardingStore` to `status-go` call.
Closes#5096
Created new PasswordView.qml component.
Added logic in new component:
- Type of characters introduced.
- Length of strength indicator bar depending on characters length.
- Show/hide icons.
- Error messages.
- Added algorithm for password categorisation.
Added Onboarding screens and modified flow.
Replaced ChangePasswordModal content.
Closes#4785
Alexandra Betouni
Noelia