feat: Version 2

Closes #627, closes #1047

client/src/api/background-images.js

@@ -0,0 +1,27 @@
+/*!
+ * Copyright (c) 2024 PLANKA Software GmbH
+ * Licensed under the Fair Use License: https://github.com/plankanban/planka/blob/master/LICENSE.md
+ */
+
+import http from './http';
+import socket from './socket';
+
+/* Actions */
+
+const createBackgroundImage = (projectId, { file, ...data }, requestId, headers) =>
+  http.post(
+    `/projects/${projectId}/background-images?requestId=${requestId}`,
+    {
+      ...data,
+      file,
+    },
+    headers,
+  );
+
+const deleteBackgroundImage = (id, headers) =>
+  socket.delete(`/background-images/${id}`, undefined, headers);
+
+export default {
+  createBackgroundImage,
+  deleteBackgroundImage,
+};