IO-121: Validate membership type screen

[erawat]

Overview

This PR:

• Adds validate for fixed period membership type when submitting the form and unit tests.
• Moves Membership Type Plan field before Membership Type Duration Unit field.

Validations added are

1. Validate if membership type annual pro rata calculation field is selected when fixed period membership type is selected.
2. Validate if membership type duration is 1 year if fixed period membership type is selected

Before

After