Add "Display Name" field to Admin UI snippet

[netmikey]

According to this post, Apple requires a very specific wording for its Sign-In buttons. That would be easily achievable using the "Display Name" property present in the generic OIDC provider you're inheriting from. However, your Admin UI snippet is lacking that field. Could you please add the following snippet to realm-identity-provider-apple-ext.html as suggested by ebiscardi:

<div class="form-group clearfix">
   <label class="col-md-2 control-label" for="displayName"> {{:: 'display-name' | translate}}</label>
    <div class="col-md-6">
        <input class="form-control" id="displayName" type="text" ng-model="identityProvider.displayName">
    </div>
    <kc-tooltip>{{:: 'identity-provider.display-name.tooltip' | translate}}</kc-tooltip>
</div>

[SalahAdDin]

@netmikey Did you try to make a pull request?

[netmikey]

No I haven't, I have overwritten the whole realm-identity-provider-apple-ext.html in my project and have added those lines.

[SalahAdDin]

@netmikey It could be gread if you create a pull request to improve this repo.

[SalahAdDin]

@netmikey @BenjaminFavre It could be related to keycloak/keycloak#7323 (comment)