Show address titles on transaction confirmation page

Add addressTitle() helper that looks up an address across all wallets
and returns its title (e.g. "Address 1.2"). The confirm page now shows
titles for both sender and receiver when they belong to our wallet.
formatAddressHtml gains an optional title parameter shown above the
full address, alongside any ENS name.

src/popup/views/confirmTx.js

@@ -8,6 +8,7 @@ const {
     showError,
     hideError,
     showView,
+    addressTitle,
     formatAddressHtml,
 } = require("./helpers");
 const { state } = require("../../shared/state");
@@ -22,11 +23,19 @@ let pendingTx = null;
 function show(txInfo) {
     pendingTx = txInfo;
 
-    $("confirm-from").innerHTML = formatAddressHtml(txInfo.from, null, null);
+    const fromTitle = addressTitle(txInfo.from, state.wallets);
+    $("confirm-from").innerHTML = formatAddressHtml(
+        txInfo.from,
+        null,
+        null,
+        fromTitle,
+    );
+    const toTitle = addressTitle(txInfo.to, state.wallets);
     $("confirm-to").innerHTML = formatAddressHtml(
         txInfo.to,
         txInfo.ensName,
         null,
+        toTitle,
     );
 
     // Hide the separate ENS element — it's now inline in the address display