fix(Popover): unnecesary call of `onOpen` and missing call of `onClose`

[unekinn]

Summary

Popover: Fix unnecesary call of onOpen and missing call of onClose

• Don't call onOpen when clicking Popover.Trigger when Popover is already open.
• Call onClose when a controlled Popover is closed by clicking on Popover.Trigger.

Checks

• [x] I have read the contribution guidelines
• [x] I have added a changeset (run pnpm changeset if relevant)

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 4ab3095774b4bcb696c3e128a32879812e309286

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

This PR includes changesets to release 4 packages

Name	Type
@digdir/designsystemet-react	Patch
@digdir/designsystemet	Patch
@digdir/designsystemet-css	Patch
@digdir/designsystemet-theme	Patch

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[github-actions[bot]]

Preview deployments for this pull request:

storybook - 21. Nov 2025 - 14:18

[Barsnes]

I'll make sure to fix this before next release 😄