Preview for uploaded files in tasks

Implement a feature to display thumbnail previews of uploaded images directly in the task details view, with a lightbox function to view the images in full size upon clicking. Additionally, display the first uploaded image as a thumbnail on the task card in the kanban board for quick visual reference. This enhancement will streamline the task review process and reduce the need to download images or open them in separate tabs.

Currently, when clients submit tasks by filling out the custom form, any uploaded images are only accessible through a link within the task details. Due to the extra step required to view these images—either downloading them or opening them in a new tab—there is a hindrance to efficiency and productivity. Clients often upload screenshots indicating changes needed on their web pages, and these images are integral to understanding and executing the tasks. While images can be manually added to the comments section for better visibility, this adds extra steps for the task owner.

Therefore it would be very convenient to be able to click on thumbnails on uploaded files for easier and faster access for viewing the images.