Updated extrapolation docs for clarity and adding an image

[sfanahata]

DESCRIBE YOUR PR

Updated extrapolation docs for clarity and adding an image to make it clearer how extrapolation works.

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Project	Deployment	Preview	Comments	Updated (UTC)
develop-docs	Ready	Preview	Comment	Oct 28, 2025 5:21pm

1 Skipped Deployment

Project	Deployment	Preview	Comments	Updated (UTC)
sentry-docs	Ignored	Preview		Oct 28, 2025 5:21pm