Fix search bar functionality on homepage

[Muskan-kagzi]

PR Description 📜

Fixed the search bar functionality on the homepage.

Changes Made

• Added search input event handling using onkeyup
• Fixed incorrect DOM element selection logic
• Updated search filtering behavior for game cards

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[kunjgit]

Thank you @Muskan-kagzi ,for creating the PR and contributing to our GameZone 💗
Review team will review the PR and will reach out to you soon! 😇
Make sure that you have marked all the tasks that you are done with ✅.
Thank you for your patience! 😀