Implement a Load More button/functionality for giveaways list page

[Torvec]

While the gamerpower api does not seem to support limits/pages of data fetched to it's API. I can still have it only render the first 10 or 12 cards and then have a view more button at the bottom that will then render 10 or 12 more. Can improve render times/make it more snappy feeling.

Potential strategy per chatgpt:

1. Fetch all results (you have no choice).
2. Store them in state (say, allResults).
3. Display only the first 10 (visibleResults = slice of allResults).
4. On "Load More" click:
   • Expand visibleResults to include the next 10.
   • Repeat until all are shown.