Revisit toggling Button pattern to ensure it aligns with updated accessible notifications subscription pattern

[gerardo-rodriguez]

#1508 will introduce a new more accessible notifications subscription pattern.

The goal of this card is to ensure the toggling Button pattern still makes sense for the more accessible notifications subscription pattern.

Either refactoring will be needed, or the toggling pattern may be unnecessary?

[gerardo-rodriguez]

Marking this blocked until #1508 gets ironed out.