Explore Alternatives for Light/Dark Theme Organization Using Styled Components

**Description**
- As we implement the Light/Dark Theme feature for our blog, we need to explore different alternatives to organize the styles for the themes. One potential solution is to use Styled Components or a combination of Styled Components and CSS variables. This feature will allow us to easily maintain and customize the styles for the different themes.

**Acceptance Criteria**
- Research and compare different alternatives for organizing styles for light and dark themes using Styled Components or a combination of Styled Components and CSS variables.
- Implement the recommended solution for organizing the styles for light and dark themes.
- Ensure that the selected solution allows for easy maintenance and customization of the styles for the different themes.