chore(docs): Updating docs to reflect TOTP support in Authenticator for Swift

[harsh62]

Description of changes

The PR aims to update docs to add details of TOTP in Authenticator for Swift. The changes updates the following 2 things:

• How a customer can pass in a configuration to udpate the issuer.
• How a customer can customize the TOTP Setup Experience.

Checklist

• Have read the Pull Request Guidelines
• PR description included
• Relevant documentation is changed or added (and PR referenced)
• yarn test passes and tests are updated/added
• No side effects or sideEffects field updated

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[changeset-bot]

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Latest commit: e53f118

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[abdallahshaban557]

LGTM

[harsh62]

TOTP PR has been merged. aws-amplify/amplify-ui-swift-authenticator#43

[harsh62]

Released TOTP Support in Authenticator for Swift
https://github.com/aws-amplify/amplify-ui-swift-authenticator/releases/tag/1.1.0 .. This PR Is ready to be merged.