Also improve the description a bit and explain at a high level
how this code is used, and which classes back those entry points.
Change-Id: Ia69531858e714d0b43a29a7d5b6dcc5c7edd8240
Adding optional $className parameter to provide additional
styling options.
Optional parameter $heading was introduced for MobileFrontend. Therefore
leaving inconsistent parameter order is necessary for the time being.
Bug: T232903
Change-Id: I5857b2c58a47a83156c32f086a73fe2bd48ab0c8