[MaterialContainerTransform] Progress value on transition canceled

@hunterstich is already working on this.

Since Sep 14, 2023.

**Is your feature request related to a problem? Please describe.**
When you start a transition using the `MaterialContainerTransform` and cancel it midway, the return transition starts from the 100% progress mark of the transition that just got canceled, disrupting the flow.
For example, a transition with a duration of 3000ms gets interrupted after 1000ms. The animation container jumps to the final stage of the transition to perform the return transition.

**Describe the solution you'd like**
I would like for the transition to return from its current progress instead. A progress parameter passed in the `onTransitionCancel` function would be great since we can then adjust our `sharedElementReturnTransition` progress thresholds accordingly.