toggle-button-group Component

😯 Problem to Solve

Nimble should have a component that places multiple icon toggle buttons close to each other and allows either exclusive selection or non-exclusive.

Note: this was previously called split-icon-button but I renamed it to distinguish from #1523

💁 Proposed Solution

• Visual Design: https://xd.adobe.com/view/8ce280ab-1559-4961-945c-182955c7780b-d9b1/screen/d022d8af-22f4-4bf2-981c-1dc0c61afece

📋 Tasks

• nimble-split-icon-button interaction design issue
• nimble-split-icon-button interaction design spec
• nimble-split-icon-button visual design issue
• nimble-split-icon-button visual design spec
• nimble-split-icon-button spec
• nimble-split-icon-button custom element
• nimble-split-icon-button unit tests
• nimble-split-icon-button Storybook tests
• nimble-split-icon-button Storybook docs
• nimble-split-icon-button Angular wrapper
• nimble-split-icon-button Blazor wrapper
• Add to Angular example app
• Add to Blazor example app
• Update Component Status table in README and incubating status

Start with the linked Adobe XD visual design and review the task checklist, including the custom element, tests, Storybook, wrappers, example apps, and README status. Confirm the interaction and visual specifications before implementation; done would require completing the listed design and integration tasks.