Add showPercent option to funnel chart

[hughess]

Description

showPercent=true

Checklist

• For UI or styling changes, I have added a screenshot or gif showing before & after
• I have added a changeset

[changeset-bot]

🦋 Changeset detected

Latest commit: 5c4c36d

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 5 packages

Name	Type
@evidence-dev/core-components	Patch
evidence-docs	Patch
@evidence-dev/evidence	Patch
@evidence-dev/components	Patch
evidence-test-environment	Patch

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Name	Status	Preview	Comments	Updated (UTC)
evidence-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 15, 2023 3:55pm