https://github.com/user-attachments/assets/59b5fd99-205e-43fe-8338-49e2dd4b234b

## Changes:
- Added a method to force graphics on screen `ex.GraphicsComponent.forceOnScreen`
- Added new `ex.Slide` scene transition, which can slide a screen shot of the current screen: `up`, `down`, `left`, or `right`. Optionally you can add an `ex.EasingFunction`, by default `ex.EasingFunctions.Linear`
  ```typescript
  game.goToScene('otherScene', {
    destinationIn: new ex.Slide({
      duration: 1000,
      easingFunction: ex.EasingFunctions.EaseInOutCubic,
      slideDirection: 'up'
    })
  });
  ```
- Fixed issue where `ex.Engine.screenshot()` images may not yet be loaded in time for use in `ex.Transition`s
- Fixed issue where there would be an incorrect background color for 1 frame when transitioning to a new scene