no issue
- when dragging an image, if you dragged out of the gallery then back in directly over the space between images then no indicator was shown
- switch to using padding around images rather than margin so that the mouse can be detected over the gap. Added classes to the image overlays to account for the change in sizing
no issue
- first pass at implementation of drag-and-drop re-ordering of images within a gallery
- adds a `koenig-drag-drop-handler` service that allows consumers (editor and cards) to hook into drag and drop behaviour without interfering with each other and allows for future possibilities such as dragging images between galleries or into/out of galleries
closes https://github.com/TryGhost/Ghost/issues/9840
- added error on uploading an invalid image format
- updated to use overall error method(`onFailed`) to set error message instead of individual upload failures(`onUploadFailure`)
no issue
- added `onUploadStart` action to `{{gh-uploader}}` that is triggered when individual files start uploading
- will not be triggered for any files that fail client-side validation
- changed `{{koenig-card-gallery}}` to only add images to the local gallery display when the uploader starts an upload
no issue
- moved all payload building into single function
- only put fully valid images into mobiledoc
- extracted image data reading and width/height reading into a separate function
- fixed re-ordering when deleting an image
