Add maximum nesting rule per composable

[ursusursus]

I'd like to enforce maximum nesting per @Composable function to force dedicated @Composable sub functions for better readibility

I.e for this to be banned (obviously nonsensical, but the point is amount of nesting per named @Composable)

@Composable
fun Foo() {
    Box {
        Box {
            Box {
                Box {
                    Box {
                        Text("")
                    }
                }
            }
        }
    }
}

and therefore encouraging

Composable
fun Foo() {
    Box {
        Box {
            Box {
                Bar()
            }
        }
    }
}

@Composable
private fun Bar() {
    Box {
        Box {
            Text("")
        }
    }
}