Inconsistent API

`GlanceAppWidgetManager` requires using `::class.java` in some methods and `::class` in others

I guess it's safe to assume nobody is going to be using that API from Java, so `KClass` should be used consistently?

`androidx.glance.appwidget.GlanceAppWidgetManager#requestPinGlanceAppWidget` is one of the offending functions

Start by inspecting the androidx.glance.appwidget.GlanceAppWidgetManager API, especially requestPinGlanceAppWidget, and compare the parameter types used by its other methods. Confirm which Kotlin class-reference form the API should expose and check the surrounding declarations for consistency; done means the relevant methods use the agreed form consistently.

Written by the indexing model from the issue text.