Slider redesign

[GomezIvann]

Checklist

• The build process is done without errors. All tests pass in the /lib directory.
• Self-reviewed the code before submitting.
• Meets accessibility standards.
• Added/updated documentation to /website as needed.
• Added/updated tests as needed.

Description
Redesign of the slider component following the new design kit specifications, already using the new token architecture (CSS variables). This PR also includes:

• Rounding-up issues are fixed when there's a defined step, minimum, and maximum values. The value allows "invalid" numbers, but the component always renders consistently.
• Now the component supports negative limits and the slider can set values between them (the slider couldn't go under 0 values, event with a negative minimum).
• Now the component supports decimal values, limits and steps.
• The component now uses the Number Input internal, which improves both the implementation (only numbers) and the behaviour of the component (mouse wheel increase/decrease).
• Other code improvements and refactors for a better understanding of its behavior.

Additional context

• Figma designs

Closes #841

[Mil4n0r]

Only missing doc, everything seems okay