CRITICAL: Fix double dispose on LazyLoadBitmap

This is caused by the `using` clause on the stream causing the resultStream to somehow getting double disposed during the event `ImageOnImageOpened` and crashes about 95% of the time during game/region change.

Author: bagusnl

CollapseLauncher/XAMLs/MainApp/ValueConverters.cs

@@ -718,7 +718,7 @@ await CacheManager
                                                CancellationToken.None);
 
                 resultStream = result.Stream;
-                using IRandomAccessStream stream = resultStream.AsRandomAccessStream(true);
+                IRandomAccessStream stream = resultStream.AsRandomAccessStream(true);
                 image.ImageOpened += ImageOnImageOpened;
 
                 await image.SetSourceAsync(stream);