chore(wallet) lazy load TransactionDetailView

I was debugging a crash at login and found out that
TransactionDetailView was being loaded even when it was not being used;
my debugging code in `onComplete` was trying to access transaction data
from nim which was not set.

Updates #13663

ui/app/AppLayouts/Wallet/views/RightTabView.qml

@@ -73,6 +73,7 @@ RightTabBaseView {
             readonly property var detailedCollectibleActivityController: RootStore.tmpActivityController0
         }
 
+        // StackLayout.currentIndex === 0
         ColumnLayout {
             spacing: 0
 
@@ -268,8 +269,10 @@ RightTabBaseView {
             }
         }
 
-        TransactionDetailView {
+        Loader {
-            id: transactionDetailView
+            active: stack.currentIndex === 3
+
+            sourceComponent: TransactionDetailView {
                 controller: RootStore.activityDetailsController
                 onVisibleChanged: {
                     if (visible) {
@@ -291,4 +294,5 @@ RightTabBaseView {
                 visible: (stack.currentIndex === 3)
             }
         }
+    }
 }