Rapid UI: Standardize Default Spacing and Sizing

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As a user of Rapid-UI, I want a standardized default spacing and sizing across all components, facilitating a more consistent and predictable design experience.

Features:

• All components should use 'medium' as the default spacing and sizing.
• Users should have the option to either increase or decrease from this default 'medium' size.
• Existing components that currently use 'large' as the default size should be updated, with the current 'large' redefined as 'medium', and a new 'large' size added.
• The 'small' size option should be removed from all components.

Acceptance Criteria:

• All components default to 'medium' size and allow size modification.
• The current 'large' size has been redefined as 'medium', and a new 'large' size has been added where necessary.
• 'Small' size has been removed from all components.
• The sizing adjustments are reflected in the component display on Storybook.