fix(base): revert ds-icon defining fill

[mimarz]

Not all icons are created equally, so it might be to opinionated for use to define fill for icons (svg).

Given an icon that is defined using lines (outline), defining fill on the svg breaks the icon. For example:

<svg
    xmlns="http://www.w3.org/2000/svg"
    width={size}
    height={size}
    fill="none"
    stroke="currentColor"
    strokeLinecap="round"
    strokeLinejoin="round"
    strokeWidth={2}
    viewBox="0 0 24 24"
    {...props}
  >
    <circle cx={6} cy={15} r={4} />
    <circle cx={18} cy={15} r={4} />
    <path d="M14 15a2 2 0 0 0-2-2 2 2 0 0 0-2 2M2.5 13 5 7c.7-1.3 1.4-2 3-2M21.5 13 19 7c-.7-1.3-1.5-2-3-2" />
  </svg>

https://designsystemet.slack.com/archives/C05RK9VEGJ0/p1781778192765679

[changeset-bot]

🦋 Changeset detected

Latest commit: 968c8cd

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

This PR includes changesets to release 5 packages

Name	Type
@digdir/designsystemet-css	Patch
@digdir/designsystemet	Patch
@digdir/designsystemet-types	Patch
@digdir/designsystemet-react	Patch
@digdir/designsystemet-web	Patch

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[github-actions]

Preview deployments for this pull request:

storybook - 18. Jun 2026 - 12:55