fix: stop screenshot frames being dropped during animations

[ioannisj]

💡 Motivation and Context

Follow-up to #524

• Adds isOnlyAnimationRedraw to distinguish animation-driven redraws from structural layout changes
• Uses View.hasTransientState() on the decor view as the signal — Android propagates transient state up from any animating descendant, so a single check at the root covers deeply nested LottieAnimationView instances without walking the tree
• The PII concern is preserved: if a structural change occurs (mask positions could shift), isOnlyAnimationRedraw is false and the screenshot is still discarded. Only pure animation redraws (where view geometry is stable) are allowed through

💚 How did you test it?

Tested on a sample project with lottie animations (here)

• snapshots don't get dropped because of animated view
• fast scrolling does not cause masking drift

📝 Checklist

• I reviewed the submitted code.
• I added tests to verify the changes.
• I updated the docs if needed.
• No breaking change or entry added to the changelog.

If releasing new changes

• Ran pnpm changeset to generate a changeset file

[marandaneto]

looks like y ou have to update the sha here https://github.com/PostHog/posthog-android/actions/runs/26275242546/job/77337802632?pr=529