Specify Subscription Group Type

[ianabels]

Pull Request/Issue Resolution

Description of Change:

With SMS & WhatsApp now supported by the Preference Center Liquid tags, I'm calling out that the old version will only automatically list Email Subscription Groups (which was previously a given).

Is this change associated with a Braze feature/product release?

• Yes (1/26/2023)
• No

@tiffanyjlin @lydia-xie

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