Show on App Launch: Fix no option selected on rotation (#5200)

Task/Issue URL:
https://app.asana.com/0/1207908166761516/1208637287651029/f

### Description

Fixes no options being selected then the phone is rotated.

### Steps to test this PR

- [x] Open Show on App Launch screen in settings
- [x] Rotate phone to landscape
- [x] The same option that was selected should still be selected

### Demo

https://github.com/user-attachments/assets/2fabd7ae-15c5-41e6-8b04-c78c13483d71

app/src/main/java/com/duckduckgo/app/generalsettings/showonapplaunch/ShowOnAppLaunchActivity.kt

@@ -92,7 +92,7 @@ class ShowOnAppLaunchActivity : DuckDuckGoActivity() {
 
     private fun observeViewModel() {
         viewModel.viewState
-            .flowWithLifecycle(lifecycle, Lifecycle.State.STARTED)
+            .flowWithLifecycle(lifecycle, Lifecycle.State.RESUMED)
             .onEach { viewState ->
                 when (viewState.selectedOption) {
                     LastOpenedTab -> {