Adds mouse filter to bubble

[tiagojdf]

By allowing the user to change the mouse filter, the bubble can now be set to ignore to prevent it from capturing events. The original use case for this modification was preventing bubbles of blocking the mouse movement when the mouse was captured on a 3D game.

Original issue: https://discord.com/channels/628713677239091231/1357374714263376035

[tiagojdf]

Here is the test scene I used to develop the feature. To test it, run the scene and move the mouse around until the bubble is around the center area of the camera. The mouse movement eventually blocks.
Close the running game, change the property in the Bubble styles, behavior, mouse filter to Ignore. Rerun the scene and this around the mouse no longer gets stuck
test-scenes.zip

[Jowan-Spooner]

Thanks, tested and works fine!