add option for users to make their favorites private

migrations/add_favorites_private.sql

@@ -0,0 +1,5 @@
+-- Add favorites_private column to user_options table
+ALTER TABLE user_options
+    ADD COLUMN IF NOT EXISTS favorites_private boolean DEFAULT false;
+
+COMMENT ON COLUMN public.user_options.favorites_private IS 'When true, only the owner and administrators can view the user''s favorites list';