"Display message if username unavailable" config is hidden in the self registration configs

[pamodaaw]

Description

Issue 1:

Display message if username unavailable config check box is hidden when the Account verification config is unticked in the Self Registration configuration UI.

When Account verification config is ticked

When Account verification config is unticked

Issue 2

The Display message if username unavailable is not updated properly in the API request going to the BE. The value is always set to true.

Request URL:
https://localhost:9443/api/server/v1/identity-governance/VXNlciBPbmJvYXJkaW5n/connectors/c2VsZi1zaWduLXVw

Request Method:
PATCH

Request Body:

{
    "operation": "UPDATE",
    "properties": [
        {
            "name": "SelfRegistration.AutoLogin.Enable",
            "value": false
        },
        {
            "name": "SelfRegistration.LockOnCreation",
            "value": true
        },
        {
            "name": "SelfRegistration.NotifyAccountConfirmation",
            "value": "true"
        },
        {
            "name": "SelfRegistration.SendConfirmationOnCreation",
            "value": true
        },
        {
            "name": "SelfRegistration.ShowUsernameUnavailability",
            "value": "true"
        },
        {
            "name": "SelfRegistration.VerificationCode.ExpiryTime",
            "value": "1440"
        },
        {
            "name": "SelfRegistration.Enable",
            "value": "true"
        }
    ]
}

Steps to Reproduce

Refer above

Version

wso2is-7.1.0-m8

Environment Details (with versions)

No response