Make sure file loading indicator is propagated

src/base/projects/Tree.svelte

@@ -22,6 +22,7 @@
   {#if entry.info.objectType === ObjectType.Tree}
     <Folder
       {fetchTree}
+      {loading}
       name={entry.info.name}
       prefix={`${entry.path}/`}
       currentPath={path}

src/base/projects/Tree/Folder.svelte

@@ -11,6 +11,7 @@
   export let name: string;
   export let prefix: string;
   export let currentPath: string;
+  export let loading: string | null = null;
 
   let expanded = currentPath.indexOf(prefix) === 0;
   let tree: Promise<Tree> | null = expanded ? fetchTree(prefix) : null;
@@ -81,7 +82,7 @@
           {:else}
             <File
               active={entry.path === currentPath}
-              loading={false}
+              loading={entry.path === loading}
               name={entry.info.name}
               on:click={() => {
                 onSelectFile({ detail: entry.path });