Unnecessary leaf layout

A layout that has no children or no background can often be removed (since it is invisible) for a flatter and more efficient layout hierarchy.

Issue id: UselessLeaf

Inspection Details
Available in:	IntelliJ IDEA 2023.3, Qodana for Android 2023.3, Qodana for JVM 2023.3
Plugin:	Android, 2022.3.1 Beta 2

Last modified: 13 July 2023