feat: Add navigation sidebar to shared documents (#2899)

Co-authored-by: Tom Moor <tom@getoutline.com>

app/types.ts

@@ -139,6 +139,11 @@ export type NavigationNode = {
   isDraft?: boolean;
 };
 
+export type CollectionSort = {
+  field: string;
+  direction: "asc" | "desc";
+};
+
 // Pagination response in an API call
 export type Pagination = {
   limit: number;