Feaute/asub 8252 apple OIDC: WIP

[accbjt]

Be sure to run npm test, npm run lint, and write detailed test steps before requesting reviewers

Description

Add Apple sign on button for Apple OIDC version of the Apple Sign On functionality. This is a v2 version that will allow clients to use their Apple Sign On on multiple devices and platforms. This is dependent on @arc-publishing/sdk-identity being deployed.

Jira Ticket: THEMES-

• https://arcpublishing.atlassian.net/browse/ASUB-8252

Test Steps

• This is very dependent on subsinglesite and how Apple is setup there.

Add detailed test steps a reviewer must complete to test this PR

1. Checkout this branch git checkout {branch name}
2. Run fusion repo with linked blocks npx fusion start -f -l {blocks to link}
3. {Next ....}