Right now when clicking on loadmore on files change page, if the loaded content is image, it will be always in load status: https://github.com/go-gitea/gitea/assets/17645053/39e449b6-067a-474c-9443-9dd98d5bbfe2 This PR fixes this by adding `initImageDiff ` to `onShowMoreFiles ` After: https://github.com/go-gitea/gitea/assets/17645053/87bbb13e-0064-4a6e-a7ad-0f0060eb8bff