Include shared rooms in room count for search (#2470)

app/helpers/rooms_helper.rb

@@ -59,4 +59,11 @@ module RoomsHelper
   def hidden_format_public
     ENV.fetch("HIDDEN_FORMATS_PUBLIC", "").split(",")
   end
+
+  # Returns the total number of visibile rooms for the current user
+  def total_room_count(user)
+    total = user.rooms.length
+    total += user.shared_rooms.length if shared_access_allowed
+    total
+  end
 end