Issue 4 : Disable the navigation buttons when the first or last image is displayed.

[sbmsr]

What you need to do

In the modal, the "previous" and "next" buttons should be disabled when the first or last image is displayed, respectively. Implement this functionality to enhance the user experience and prevent navigating beyond the image gallery's limits.

Expected behavior

When the first image is displayed, the "previous" button should be disabled. When the last image is displayed, the "next" button should be disabled:

issue4.mov