Feat: Dark theme support for Documents

[AkashJana18]

Description:
I'd like to propose adding dark theme support to the llware documentation for a better user experience. Dark mode is increasingly popular for reducing eye strain, especially in low-light conditions. Implementing a dark mode option would allow users to switch between light and dark themes based on their preference or system settings.

Expected UI Changes:

• Background: Change the background color from white to a dark shade (e.g., #121212 or #1e1e1e) to provide a low-light, high-contrast experience.
• Text: Adjust text colors to a lighter shade (e.g., #e0e0e0 or #ffffff) to maintain readability against the dark background.
• Links: Use a bright, distinct color for links (e.g., #1e90ff or #ff9800), ensuring they stand out on a dark background.
• Buttons: Style buttons with high contrast, using darker shades for button backgrounds and light-colored text.
• Code Blocks: Ensure syntax highlighting adjusts for dark mode, with the background of code blocks becoming darker and the text colors being adjusted for visibility.
• UI Elements: Icons, borders, and input fields should be styled to suit the dark theme while maintaining usability and clarity.

Questions for Maintainers:

• Do you have any preferences for the approach to implementing dark mode (e.g., Tailwind CSS, custom CSS, or any other framework)?
• Would you prefer an automatic dark mode toggle based on system settings or a manual switch in the UI for users to choose?

Request:
Assign me this issue

[rohitmore07]

Hey @AkashJana18 I am very keen to work on this issue . I would be really happy if you could assign this issue to me.

[AkashJana18]

@rohitmore07 I am already working on the issue and PR will be raised within few days

[rohitmore07]

OK