fix: Prevent StyledWidgets from being focusable by default

[tilucasoli]

Description

By default, all StyledWidgets are focusable, even in cases where they shouldn’t be. In vanilla Flutter, a Container is not focusable unless explicitly wrapped with another widget to enable focus. This PR aims to replicate that behavior in StyledWidgets, making them focusable only when a FocusableVariant is explicitly defined in their style. This change aligns StyledWidgets with expected Flutter behavior, providing better control over focusable elements.

Changes

• Fix canRequestFocus property on Interactive;
• Add a logic in StyledSpec to only set canRequestFocus when needed
• Add some tests

Review Checklist

• Testing: Have you tested your changes, including unit tests and integration tests for affected code?
• Breaking Changes: Does this change introduce breaking changes affecting existing code or users?
• Documentation Updates: Are all relevant documentation files (e.g. README, API docs) updated to reflect the changes in this PR?
• Website Updates: Is the website containing the updates you make on documentation?

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
mix-docs	⬜️ Ignored (Inspect)	Visit Preview		Jan 23, 2025 9:06pm