RoasterDB tab: price in its store currency, per-currency price filter; dataengineered.io links; WhiskyDB index to Oct 2024

WhiskyDB tab: current floors; portal link instead of a mailto CTA

Update Kaggle links to the new username (old URLs 404)

Update README.md

chore(contact): brand address on dataengineered.io

Add WhiskyDB tab to sample explorers

Add combined multi-tab sample explorer (RoasterDB / FloraDB / SuppDB)

initial commit