Fix: MAUI Floor Filter Crash on Site Selection in .NET 9 (#645)

* Remove missing AOT compilation from project configuration

* Updated navigation methods to use PushAsync and PopAsync
instead of PushModalAsync and PopModalAsync, shifting
from modal to standard navigation.
This is temporary fix that prevents a MAUI bug reported here
dotnet/maui#29512

* Fixing indentation

* Fixing indentation

* Add platform-specific navigation handling

* Adding comments to explain the bug and workaround

* Adding more detailed comments

Author: prathameshnarkhede

src/Toolkit/Toolkit.Maui/FloorFilter/FloorFilter.cs

@@ -146,7 +146,16 @@ internal async void NavigateForward(ContentPage page)
     {
         try
         {
+            // See: https://github.com/dotnet/maui/issues/29512
+            // Explanation: Due to a bug in .NET MAUI 9, navigating from a CollectionView selection using PushAsync avoids a crash that occurs when using PushModalAsync.
+            // The crash is caused by the CollectionView's VirtualView not being null during navigation, leading to an unhandled exception.
+            // This workaround uses PushAsync on Windows/Android platforms to prevent the crash. When the bug is fixed in MAUI, this conditional can be revisited.
+            // TODO: Remove this conditional when the MAUI bug is fixed.
+#if WINDOWS && ANDROID
+            await Navigation.PushAsync(page); 
+#else
             await Navigation.PushModalAsync(page);
+#endif
             _navigationStackCounter++;
         }
         catch (Exception ex)
@@ -161,7 +170,14 @@ internal async void CloseBrowsing()
         {
             try
             {
+                // Workaround for .NET MAUI issue: https://github.com/dotnet/maui/issues/29512
+                // Use PushAsync on Windows/Android platforms to avoid the crash.
+                // TODO: Remove this conditional when the MAUI bug is fixed.
+#if WINDOWS && ANDROID
+                await Navigation.PopAsync(); 
+#else
                 await Navigation.PopModalAsync();
+#endif
             }
             catch (Exception ex)
             {
@@ -178,7 +194,14 @@ internal async void GoBack()
     {
         try
         {
+            // Workaround for .NET MAUI issue: https://github.com/dotnet/maui/issues/29512
+            // Use PushAsync on Windows/Android platforms to avoid the crash.
+            // TODO: Remove this conditional when the MAUI bug is fixed.
+#if WINDOWS && ANDROID
+            await Navigation.PopAsync(); 
+#else
             await Navigation.PopModalAsync();
+#endif
         }
         catch (Exception ex)
         {