Hammer Feature: Prop_dynamic animation preview improvements

[Qquashy]

Which component should be improved?

Hammer

Describe your feature suggestion in more detail

When setting an animation via the default animation keyvalue, or when setting the animation via the "Model" tab, the prop_dynamic should repeat this animation indefinitely. Currently, the model stops animating when the properties window is closed, making it annoying to align models.

Interestingly, if you select the models which should animate, move them, then undo, they play their animations correctly and consistently

[lenship2]

the model's animations do technically repeat indefinitely if you hit apply while previewing it in the model tab, it's just kinda buggy