Use full-width two picker in both orientations in tablets

The change is really for enabling display of categorical suggestions,
so using the same flag.

Bug: 315055849
Bug: 318410881
Test: See screenshots
Flag: ACONFIG com.android.launcher3.enable_categorized_widget_recommendations DEVELOPMENT
Change-Id: Ia98fdd6b827f31a63264128617f6a16ee0716bcc