added a card

[Sandeepdwivediii]

This card could provide a random fun fact on different subjects (science, history, pop culture, etc.), similar to the other themed cards you've already included. You can create a corresponding file, fun-fact.js, in the ./src/cards/ directory, and fill it with code to fetch or generate fun facts dynamically.

[akanshSirohi]

@Sandeepdwivediii This kind of PRs will not be accepted and will be reported to the Hacktoberfest team from next time.