Fixed the remove from favourites issue

[AdityaGahukar]

Fixes #83

Summary

This PR addresses the following issues and implements several key features for the Giphy Explorer project:

• Bug Fix: Fixed the modal close button functionality, which was previously not working. Now, users can properly close the "Share GIF" modal using the cross button.
• Feature Addition: Added the ability to upload GIFs directly through the file upload option, and ensured only GIF files are accepted.

Changes Made

1. Modal Close Button:

   • Fixed the close button functionality by adding an event listener that removes the modal from view when the button is clicked.

2. File Upload Handling:

   • Implemented an event listener that allows users to upload GIF files.
   • Restricted the file type to only accept .gif images.

3. Favorites Management:

   • Added functionality to remove GIFs from favorites, both in the modal and the main list.

How to Test

1. GIF Upload:

   • Click on the "Upload GIF" button and choose a .gif file from your system.
   • Ensure that non-GIF files are rejected.

2. Sharing and Removing GIFs:

   • Click on a GIF to open the modal.
   • Test the share buttons for Facebook, Twitter, and Pinterest.
   • Test the "Copy Link" button and ensure the URL is copied.
   • Click on "Remove" to remove the GIF from your favorites list.

3. Close Button:

   • Open the modal by clicking on a GIF and close it using the cross button (top-right corner).

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Let me know if you'd like to see any further changes, or if you encounter any issues while testing this PR.