chore: use forwardedAs prop in styled-react

[francinelucca]

wraps all custom components in @primer/styled-react with forwardedAs prop to prevent issue caused by styled-components/styled-components#1981

Changelog

Changed

• Modify all components in styled-react/src/components/* to use forwardedAs prop

Rollout strategy

• Patch release
• Minor release
• Major release; if selected, include a written rollout or migration plan
• None; if selected, include a brief description as to why

Testing & Reviewing

Merge checklist

• Added/updated tests
• Added/updated documentation
• Added/updated previews (Storybook)
• Changes are SSR compatible
• Tested in Chrome
• Tested in Firefox
• Tested in Safari
• Tested in Edge
• (GitHub staff only) Integration tests pass at github/github (Learn more about how to run integration tests)

[changeset-bot]

🦋 Changeset detected

Latest commit: 4db0db3

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

This PR includes changesets to release 1 package

Name	Type
@primer/styled-react	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[github-actions]

👋 Hi, this pull request contains changes to the source code that github/github depends on. If you are GitHub staff, we recommend testing these changes with github/github using the integration workflow. Thanks!

[Copilot]

Pull Request Overview

This PR implements forwardedAs prop handling in the styled-react package by creating wrapper components that pass the as prop as forwardedAs to styled components. This is necessary for proper polymorphic component behavior in styled-components.

• Refactors all styled-react components to use a two-layer architecture (styled component + wrapper)
• Adds consistent forwardedAs prop forwarding for polymorphic element rendering
• Includes a minor Storybook port change from 6006 to 6007

Reviewed Changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
packages/styled-react/src/components/UnderlineNav.tsx	Refactored to use StyledUnderlineNav wrapper with forwardedAs support
packages/styled-react/src/components/Truncate.tsx	Added StyledTruncate wrapper with forwardedAs handling
packages/styled-react/src/components/ToggleSwitch.tsx	Created StyledToggleSwitch with forwardedAs prop forwarding
packages/styled-react/src/components/Timeline.tsx	Comprehensive refactor of all Timeline sub-components with forwardedAs support
packages/styled-react/src/components/SubNav.tsx	Added styled wrappers for SubNav and SubNavLink components
packages/styled-react/src/components/StateLabelProps.tsx	File deleted (appears to be duplicate/incorrect file)
packages/styled-react/src/components/StateLabel.tsx	Added StyledStateLabel wrapper with forwardedAs prop
packages/styled-react/src/components/Spinner.tsx	Refactored to use StyledSpinner with forwardedAs handling
packages/styled-react/src/components/SegmentedControl.tsx	Added styled wrappers for all SegmentedControl sub-components
packages/styled-react/src/components/RelativeTime.tsx	Created StyledRelativeTime with forwardedAs support
packages/styled-react/src/components/RadioGroup.tsx	Comprehensive refactor of RadioGroup and all sub-components
packages/styled-react/src/components/PageHeader.tsx	Complex refactor with forwardedAs support and type name changes
packages/styled-react/src/components/LinkButton.tsx	Added StyledLinkButton wrapper with forwardedAs prop
packages/styled-react/src/components/Header.tsx	Refactored Header and sub-components with forwardedAs handling
packages/styled-react/src/components/Flash.tsx	Added StyledFlash wrapper with forwardedAs support
packages/styled-react/src/components/CounterLabel.tsx	Created StyledCounterLabel with forwardedAs prop
packages/styled-react/src/components/Checkbox.tsx	Added StyledCheckbox wrapper with forwardedAs handling
packages/react/package.json	Changed Storybook dev server port from 6006 to 6007

[Copilot]

Pull Request Overview

Copilot reviewed 18 out of 18 changed files in this pull request and generated 13 comments.

[primer-integration]

👋 Hi from github/github-ui! Your integration PR is ready: https://github.com/github/github-ui/pull/3526

[primer-integration]

🔴 ci completed with status cancelled.