New component: ToggleGroup

[Febakke]

Related information and insight

• https://uxdesign.cc/the-good-the-bad-and-the-toggle-2abc0fbbd099
• https://aksel.nav.no/komponenter/core/toggle-group#togglegroupdemo-label
• https://www.radix-ui.com/primitives/docs/components/toggle-group
• https://components.ruter.as/#/Components/Forms/RadioButtonGroup
• https://primer.style/design/components/segmented-control
• https://design-system.w3.org/styles/forms.html#segmented-options
• https://mantine.dev/core/button/#buttongroup
• https://www.w3.org/WAI/ARIA/apg/patterns/tabs/

Specification and requirements

• Only one option can be chosen at a time from a predefined set of options.
• The buttons should have the same width, based on the longest input:

• Size: Small, medium, large (same as button size)
• Label and description
• Support for only text, only icon, both icon and text (icon should be placed left to text)
• Controlled? Should have a default value
• Use buttons with roles for radio

Additional options later:

• Add vertical support (direction/orientation?)
• With tooltip (maybe not a prop, but users can add it)

### Tasks
- [ ] https://github.com/digdir/designsystem/issues/801
- [ ] https://github.com/digdir/designsystem/issues/804
- [ ] https://github.com/digdir/designsystem/issues/806
- [ ] https://github.com/digdir/designsystem/issues/805
- [ ] ToggleGroup: WCAG-Test

[mrosvik]

The ToggleGroup component is ready for use: https://storybook.designsystemet.no/?path=/docs/felles-togglegroup--docs