recursively get file size for directories

frontend/pages/warrens/files.vue

@@ -36,7 +36,7 @@ if (warrenStore.current == null) {
 useAsyncData(
     'current-directory',
     async () => {
-        if (warrenStore.current == null) {
+        if (warrenPath.value == null) {
             return {
                 files: [],
                 parent: null,
@@ -47,8 +47,8 @@ useAsyncData(
         warrenStore.loading = true;
 
         const { files, parent } = await getWarrenDirectory(
-            warrenStore.current.warrenId,
-            warrenStore.current.path
+            warrenPath.value.warrenId,
+            warrenPath.value.path
         );
 
         warrenStore.loading = false;