add: template editor

src/utils/queries/tree-queries.js

@@ -0,0 +1,19 @@
+import {useQuery, useMutation, useQueryClient} from "react-query";
+import {fetch_} from "../request-utils";
+import {useConfig} from "../../ConfigProvider";
+
+
+export const useTree = () => {
+    const queryClient = useQueryClient();
+    const config = useConfig();
+    return useQuery(
+        "tree",
+        () => fetch_(`${config.BACKEND_HOST}/api/tree/`),
+        {
+            onSuccess: data => {
+                if(data)
+                    queryClient.setQueryData("tree", data);
+            }
+        }
+    );
+}