Improve per-component theme documentation

Is your feature request related to a problem? Please describe.
Currently, the theme object and its usage are not fully documented for each component in the Flowbite-React library. This lack of documentation makes it challenging for users to customize components using the theme object directly or via the theme={} property. Consequently, users may face difficulties in understanding the available customization options and effectively utilizing the theme object.

Describe the solution you'd like
I would like to have comprehensive documentation for the theme object of each component in the Flowbite-React library. This documentation should provide clear and detailed information on how to customize components using the theme object and explain the available properties and their corresponding types.

Describe alternatives you've considered
Currently, users rely on trial and error or inspecting the source code to understand the structure and available properties of the theme object. Having dedicated documentation for each component's theme object would provide a more intuitive and efficient way for users to customize the components.

Additional context
Add any other context or screenshots about the feature request here.

By documenting the theme object for each component, we can achieve the following benefits:

1. Improved Usability: Users will have a clear understanding of how to customize components using the theme object, enabling them to tailor the appearance and behavior of components to their specific needs.

2. Reduced Learning Curve: Well-documented theme objects will provide users with a comprehensive reference, reducing the time and effort required to explore and experiment with customization options.

3. Consistent Customization: By documenting the available properties and their types, we can ensure consistent and reliable customization across components, avoiding potential errors or inconsistencies in customization approaches.

4. Enhanced Developer Experience: Clear documentation on the theme object will benefit developers who are contributing to or extending the Flowbite-React library by providing a reference for understanding and modifying the theme object structure.

In summary, creating documentation for the theme object of each component in the Flowbite-React library will improve the usability, learning curve, and developer experience for users. It will empower them to effectively customize components and leverage the full potential of the library's theming capabilities.