text: Title: `Checkbox` Border Color When `is_on = False` Should Default to Secondary Color
  Body: When `is_on = False` for the `Checkbox` component, the border color defaults to black. For better visual consistency, the border color should match the color of the filled checkbox, such as the secondary color by default.
  
  
  <img width="122" alt="image" src="https://github.com/rio-labs/rio/assets/41641225/cc520d22-94c2-4139-bc69-f0dc48afb031">
  
  <img width="67" alt="image" src="https://github.com/rio-labs/rio/assets/41641225/cf46f297-d37d-45c8-b7d9-ee6373d9754b">
  