fix(mobile): disable MSAA on Android to prevent device panic

MSAA (Multi-Sample Anti-Aliasing) has been observed to cause some Android
devices to panic. This commit disables MSAA on Android builds to avoid
device crashes while playing the Sokoban game. The issue is under
investigation and more information can be found in the related Bevy
engine issue tracker.

Issue: bevyengine/bevy#8229

mobile/src/lib.rs

@@ -4,17 +4,23 @@ use sokoban::GamePlugin;
 
 #[bevy_main]
 fn main() {
-    App::new()
-        .add_plugins((
-            DefaultPlugins.set(WindowPlugin {
-                primary_window: Some(Window {
-                    resizable: false,
-                    mode: WindowMode::BorderlessFullscreen,
-                    ..default()
-                }),
+    let mut app = App::new();
+    app.add_plugins((
+        DefaultPlugins.set(WindowPlugin {
+            primary_window: Some(Window {
+                resizable: false,
+                mode: WindowMode::BorderlessFullscreen,
                 ..default()
             }),
-            GamePlugin,
-        ))
-        .run()
+            ..default()
+        }),
+        GamePlugin,
+    ));
+
+    // MSAA makes some Android devices panic, this is under investigation
+    // https://github.com/bevyengine/bevy/issues/8229
+    #[cfg(target_os = "android")]
+    app.insert_resource(Msaa::Off);
+
+    app.run();
 }