Show exact amounts and address titles in transaction detail

- Display full-precision amount (no 4-decimal truncation) in the
  transaction detail view, with native quantity (wei/base units) below
- Both amount and native quantity are click-copyable
- Show wallet/address title above from/to when the address is ours
- Update README Display Consistency to document the exception

src/popup/index.html

@@ -843,7 +843,11 @@
                 </div>
                 <div class="mb-4">
                     <div class="text-xs text-muted mb-1">Amount</div>
-                    <div id="tx-detail-value" class="text-xs font-bold"></div>
+                    <div id="tx-detail-value" class="text-xs"></div>
+                </div>
+                <div class="mb-4 hidden">
+                    <div class="text-xs text-muted mb-1">Native quantity</div>
+                    <div id="tx-detail-native" class="text-xs"></div>
                 </div>
                 <div class="mb-4">
                     <div class="text-xs text-muted mb-1">From</div>