AlertDialog is too narrow by default

[m-sasha]

Describe the bug
If you don't specify a concrete width for an AlertDialog, it attempts to display it as narrowly as possible, which often leaves a lot of unused horizontal space that could be used for a better result.

Reproducer:

@OptIn(ExperimentalMaterialApi::class)
fun main() = singleWindowApplication(
    state = WindowState(width = 400.dp, height = 300.dp),
) {
    MaterialTheme{
        AlertDialog(
            onDismissRequest = {},
            title = { Text("This is the title") },
            text = { Text("This is the text") },
            confirmButton = { }
        )
    }
}

Affected platforms
Select one of the platforms below:

• All

Versions

• Compose Multiplatform version: 1.3.0

Expected behavior
The alert dialog should be wider, not breaking lines as long as there is more horizontal room.

Screenshots

[m-sasha]

Another important issue caused by the same problem is that widthIn is ignored:

@OptIn(ExperimentalMaterialApi::class)
fun main() = singleWindowApplication(
    state = WindowState(width = 500.dp, height = 400.dp),
) {
    MaterialTheme{
        AlertDialog(
            modifier = Modifier.widthIn(max = 400.dp).padding(horizontal = 30.dp),
            onDismissRequest = { },
            title = { Text("This is the title") },
            text = { Text("This is the text This is the text This is the text This is the text This is the text This is the text This is the text") },
            confirmButton = {}
        )
    }
}