Expect androidx.compose.material.AlertDialog in common

[MatkovIvan]

Proposed Changes

• Expect AlertDialog in common
• Use Dialog from Expect Dialog in common #632
• Remove experimental desktop-only AlertDialog and AlertDialogProvider

API Change

Added AlertDialog API to common source set:

fun AlertDialog(
    onDismissRequest: () -> Unit,
    confirmButton: @Composable () -> Unit,
    modifier: Modifier = Modifier,
    dismissButton: @Composable (() -> Unit)? = null,
    title: @Composable (() -> Unit)? = null,
    text: @Composable (() -> Unit)? = null,
    shape: Shape = MaterialTheme.shapes.medium,
    backgroundColor: Color = MaterialTheme.colors.surface,
    contentColor: Color = contentColorFor(backgroundColor),
    properties: DialogProperties = DialogProperties()
)

@Composable
fun AlertDialog(
    onDismissRequest: () -> Unit,
    buttons: @Composable () -> Unit,
    modifier: Modifier = Modifier,
    title: (@Composable () -> Unit)? = null,
    text: @Composable (() -> Unit)? = null,
    shape: Shape = MaterialTheme.shapes.medium,
    backgroundColor: Color = MaterialTheme.colors.surface,
    contentColor: Color = contentColorFor(backgroundColor),
    properties: DialogProperties = DialogProperties()
)

Please note that new overload might behave differently than previous desktop-only experimental API

Testing

Test: run test apps or try to use AlertDialog in common

Issues Fixed

• No Access to DropDownMenu or AlertDialog in common source set compose-multiplatform#762