We introduced a cap on the number of bookmarks the user can add in be145ccf2f. However this has caused unintended side effects; when the `jobs/scheduled/bookmark_reminder_notifications.rb` runs we get this error for users who already had more bookmarks than the limit:
> Job exception: Validation failed: Sorry, you have too many bookmarks, visit #{url}/my/activity/bookmarks to remove some.
This is because the `clear_reminder!` call was triggering a bookmark validation, which raised an error because the user already had to many, holding up other reminders.
This PR also adds `max_bookmarks_per_user` hidden site setting (default 2000). This replaces the BOOKMARK_LIMIT const so we can raise it for certain sites.
1ba5ccd8af