Remove missing FileViewerExample from Examples.md (#138)

Author: valeriyvan

Sources/SwiftCrossUI/SwiftCrossUI.docc/Examples.md

@@ -11,7 +11,6 @@ A few examples are included with SwiftCrossUI to demonstrate some of its basic f
 - `WindowingExample`, a simple app showcasing how ``WindowGroup`` is used to make multi-window apps and
   control the properties of each window.
 - `GreetingGeneratorExample`, a simple app demonstrating dynamic state and the ``ForEach`` view.
-- `FileViewerExample`, an app showcasing integration with the system's file chooser.
 - `NavigationExample`, an app showcasing ``NavigationStack`` and related concepts.
 - `SplitExample`, an app showcasing sidebar-based navigation with multiple levels.
 - `StressTestExample`, an app used to test view update performance.