Allow RC versions of React 19 through peerDependencies

[HalvorHaugan]

Description

Should fix this.

Component Checklist 📝

• [ ] JSDoc
• [ ] Examples
• [ ] Documentation / Decision Records
• [ ] Storybook
• [ ] Style mappings (@navikt/core/css/config/_mappings.js)
• [ ] Component tokens (@navikt/core/css/tokens.json)
• [ ] CSS class deprecations (@navikt/aksel-stylelint/src/deprecations.ts)
• [ ] Exports (@navikt/core/react/src/index.ts and @navikt/core/react/package.json)
• [ ] New component? CSS import (@navikt/core/css/index.css)
• [ ] Breaking change? Update migration guide. Consider codemod.
• [x] Changeset (Format: <Component>: <gitmoji?> <Text>. E.g. "Button: :sparkles: Add feature xyz.")

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 9763c9271447aaf1b1889f1cf524b02d46da5326

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

This PR includes changesets to release 7 packages

| Name | Type | | ----------------------- | ----- | | @navikt/ds-react | Patch | | @navikt/ds-css | Patch | | @navikt/ds-tokens | Patch | | @navikt/ds-tailwind | Patch | | @navikt/aksel-icons | Patch | | @navikt/aksel | Patch | | @navikt/aksel-stylelint | Patch |

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[github-actions[bot]]

Storybook demo

3bc2b0e30 | 91 komponenter | 135 stories