Support RTL for Glanceable Hub Transition View Models.

This changelist adds RTL support in Transition View Models for
Glanceable Hub. Values controlling directional movement are negated
when the language direction differs from the originally intended
direction when the value was originally defined.

A new method has been added to ConfigurationInteractor for creating a
flow to track a resource value while considering the layout direction.

Test: atest ConfigurationInteractorTest#directionalDimensionPixelSize
Bug: 320786721
Flag: com.android.systemui.communal_hub
Change-Id: I5bd5282152923a29193ff01408751762c96260ab