Adding Etherscan links column to db

[obadiaa]

I'd like to do Etherscan linking for all our tx views in MEV-Explore /leaderboard tx tables. Instead of manually linking them, I'm thinking a simpler way to do Etherscan linking is adding a column to the database that reads like: https://etherscan.io/tx/ + "tx_hash".

In the /leaderboard tx views itself, we'd either take away the "tx_hash" column and just have a 'Transaction' columns instead that reads like the screenshot below or have an extra columns that says Etherscan

[obadiaa]

done directly on Metabase, thank you @jparyani !