Filter out RDT from loot notifications

[crismon-wing]

Checklist

• [x] I've searched the issues and pull requests for similar looking suggestions.
• [x] I've checked the Unreleased section of the changelog for newly added features that sound like my suggestion.

Describe your Suggestion

Add a checkbox or toggle to filter out drops in the rare drop table from loot notifications

Reasoning

Rare drop table is filled with junk that is way too rare and is just annoying if its sent to the discord servers.

I know that you can add stuff to the denylist but it would be nice to have one catch-all items to clear out the denylist a bit.

[iProdigy]

Would you care if an item on the RDT was filtered from the loot notification of a NPC that isn't subject to the RDT?

e.g., dragon med helm from Sarachnis not triggering a notification because dragon med helm is on the RDT (even though Sarachnis doesn't incorporate RDT in its loot logic)