fix window activation

src/main/kotlin/ch/ergon/anytask/ui/TaskWindow.kt

@@ -13,7 +13,7 @@ import ch.ergon.anytask.api.AnyTypeApi
 import kotlinx.coroutines.launch
 
 @Composable
-fun TaskWindow(client: AnyTypeApi, onDismiss: () -> Unit) {
+fun TaskWindow(client: AnyTypeApi, isVisible: Boolean, onDismiss: () -> Unit) {
     val scope = rememberCoroutineScope()
     var title by remember { mutableStateOf("") }
     var details by remember { mutableStateOf("") }
@@ -43,7 +43,7 @@ fun TaskWindow(client: AnyTypeApi, onDismiss: () -> Unit) {
             Column(
                 modifier = Modifier
                     .padding(24.dp)
-                    .onKeyEvent { event ->
+                    .onPreviewKeyEvent { event ->
                         when {
                             event.type == KeyEventType.KeyDown && event.key == Key.Escape -> {
                                 onDismiss(); true
@@ -96,5 +96,5 @@ fun TaskWindow(client: AnyTypeApi, onDismiss: () -> Unit) {
         }
     }
 
-    LaunchedEffect(Unit) { focusRequester.requestFocus() }
+    LaunchedEffect(isVisible) { if (isVisible) focusRequester.requestFocus() }
 }