Add dust transaction filter to catch native ETH poisoning

Address poisoning attacks also use real native ETH dust transfers
(e.g. 1 gwei) from look-alike addresses. Token-level filters cannot
catch these. Add a configurable dust threshold (default 100,000 gwei
/ 0.0001 ETH) that hides transactions below the threshold from
history. The threshold is editable in Settings and the filter can be
disabled entirely. Document the specific attack tx in the README.

src/popup/views/addressDetail.js

@@ -94,6 +94,8 @@ async function loadTransactions(address) {
         const result = filterTransactions(rawTxs, {
             hideLowHolderTokens: state.hideLowHolderTokens,
             hideFraudContracts: state.hideFraudContracts,
+            hideDustTransactions: state.hideDustTransactions,
+            dustThresholdGwei: state.dustThresholdGwei,
             fraudContracts: state.fraudContracts,
         });
         const txs = result.transactions;