iOS: Provide valid labels for all form elements Mobile registration form

Location: iOS Native app: Registration page

Severity: 8

Description: The "Tell Us Why You\'re interested in edx" textarea under the Optional Fields does not have a proper label. It is rendered as textfield through VoiceOver. When form fields do not have proper labels, screen reader users will not know how to interact with it or what information to enter.

Pattern: None

Auditor Note: Developers must provide a proper label for all form fields. In addition, ensure the form has on-screen label; placeholder text that disappears is not the proper way to provide visual labels. The programmatic label must be provided through the accessibilityLabel property.

Internal Note: Yes.