fix: make success-tx addresses clickable, fix USDT ETH bug, nest decoded details (closes #80)

- Add underline + click-to-copy (data-copy) to addresses in toAddressHtml()
  so they match the style used everywhere else in the extension
- Fix 'USDT ETH' display: add rawValue to Uniswap decoder Amount details
  and extract Token In info for proper symbol resolution in approval.js
- Hide redundant top-level Amount/To when decoded details are present
  (they already show the same info inside the decoded section)
- Wrap decoded calldata details in a bordered well for visual separation

src/shared/uniswap.js

@@ -445,12 +445,18 @@ function decode(data, toAddress) {
             const maxUint160 = BigInt(
                 "0xffffffffffffffffffffffffffffffffffffffff",
             );
-            const amountStr =
-                inputAmount >= maxUint160
-                    ? "Unlimited"
-                    : formatAmount(inputAmount, inInfo.decimals) +
-                      (inSymbol ? " " + inSymbol : "");
-            details.push({ label: "Amount", value: amountStr });
+            const isUnlimited = inputAmount >= maxUint160;
+            const amountRaw = isUnlimited
+                ? "Unlimited"
+                : formatAmount(inputAmount, inInfo.decimals);
+            const amountStr = isUnlimited
+                ? "Unlimited"
+                : amountRaw + (inSymbol ? " " + inSymbol : "");
+            details.push({
+                label: "Amount",
+                value: amountStr,
+                rawValue: amountRaw,
+            });
         }
 
         if (outSymbol) {