✨ Introduce serve_zip action and update routes

Add serve_zip action to handle zip file downloads, incrementing the download count and providing appropriate redirects. Update routes to include serve_zip and modify views for new download link. :lipstick: Update media grid and thumbnail overlay styles Refine the layout and appearance of media items for improved UI consistency. :lipstick: Update chart label formatting Change chart label to display absolute values followed by the label in lowercase for improved readability.