🎨 style: Refine SidePanel and Textarea Styling

[danny-avila]

Summary

This pull request focuses on improving the styling and functionality of the SidePanel and Textarea components. The changes include:

• Refactor SidePanel to provide more control over toggle states, add a new hide panel button, and improve toggle state logic.
• Memoize values and improve side panel toggle states for better performance.
• Update styling for the ScrollToBottom button.
• Force a resize of the Textarea when the placeholder text changes to ensure proper rendering.
• Experiment with TextareaAutosize wrapper and useLayoutEffect to address random textarea jankiness.
• Properly offset tooltips for side panel buttons

Change Type

• Bug fix (non-breaking change which fixes an issue)

Checklist

• My code adheres to this project's style guidelines
• I have performed a self-review of my own code
• I have commented in any complex areas of my code
• I have made pertinent documentation changes
• My changes do not introduce new warnings
• I have written tests demonstrating that my changes are effective or that my feature works
• Local unit tests pass with my changes
• Any changes dependent on mine have been merged and published in downstream modules