Add image-count sorting, and image deletion on gallery deletion (#853)

ui/v2.5/src/components/Galleries/DeleteGalleriesDialog.tsx

@@ -76,11 +76,13 @@ export const DeleteGalleriesDialog: React.FC<IDeleteGalleryDialogProps> = (
       </p>
       <Form>
         <Form.Check
+          id="delete-file"
           checked={deleteFile}
-          label="Delete zip file (if applicable)"
+          label="Delete zip file and any images not attached to any other gallery."
           onChange={() => setDeleteFile(!deleteFile)}
         />
         <Form.Check
+          id="delete-generated"
           checked={deleteGenerated}
           label="Delete generated supporting files"
           onChange={() => setDeleteGenerated(!deleteGenerated)}

ui/v2.5/src/components/Shared/Modal.tsx

@@ -56,6 +56,7 @@ const ModalComponent: React.FC<IModal> = ({
           disabled={isRunning || disabled}
           variant={accept?.variant ?? "primary"}
           onClick={accept?.onClick}
+          className="ml-2"
         >
           {isRunning ? (
             <Spinner animation="border" role="status" size="sm" />