feat(app-bridge-theme): add support for hiding navigation pages

.changeset/witty-points-tap.md

@@ -0,0 +1,11 @@
+---
+"@frontify/app-bridge-theme": minor
+---
+
+feat(app-bridge-theme): add `hasVisiblePages()` to `DocumentNavigationItem`
+
+Lets consumers detect navigation documents whose pages are all hidden from navigation, so they don't need to attempt fetching their children and/or can modify their UI accordingly if needed
+
+```ts
+navigationItems.filter((item) => item.hasVisiblePages());
+```

packages/app-bridge-theme/src/types/Guideline.ts

@@ -40,6 +40,7 @@ interface DocumentBase {
 }
 export interface DocumentNavigationItem extends DocumentBase {
     parentId(): Nullable<number>;
+    hasVisiblePages(): boolean;
 }
 export interface Document extends DocumentBase {
     documentGroupId(): Nullable<number>;