Only show bookmark icon on pages (#865)

src/core/templatetags/sidebar.py

@@ -5,6 +5,7 @@
 from django.urls import reverse
 from django.utils.safestring import SafeString
 from waffle import flag_is_active
+from wagtail.models import Page
 
 from core.models.models import SiteAlertBanner
 from home.models import HomePage, QuickLink
@@ -143,12 +144,15 @@ class Bookmark(SidebarPart):
 
     def is_visible(self):
         request = self.context["request"]
+
         if not flag_is_active(request, "new_sidebar"):
             return False
+
         page = self.context.get("self")
         if isinstance(page, HomePage):
             return False
-        return True
+
+        return isinstance(page, Page)
 
     def get_part_context(self):
         user = self.context.get("user")