Press Spacebar to start the animation

With Bevy 0.11: https://idanarye.github.io/demonstrate-bevy-0.12-animation-bug/bevy11/bevy_github_ci_template

With Bevy 0.12: https://idanarye.github.io/demonstrate-bevy-0.12-animation-bug/bevy12/bevy_github_ci_template