[Fiber] Clean up ViewTransition when it fails to start #34676
                
     Merged
            
            
          
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The View Transition docs were unclear about this but apparently the
finishedpromise never settles if the animation never started. So if there's an error that rejects thereadypromise, we'll never run the clean up which can cause it to stall.Fixes #34662.
However, ultimately that is caused by Chrome stalling our default
onDefaultTransitionIndicatorbut it should be unblocked after 10 seconds, not a minute.