fix(@desktop/sendModel): Use tab to focus to next field (#12571)

ui/imports/shared/popups/send/SendModal.qml

@@ -309,6 +309,8 @@ StatusDialog {
 
                             formatCurrencyAmount: d.currencyStore.formatCurrencyAmount
                             onReCalculateSuggestedRoute: popup.recalculateRoutesAndFees()
+                            input.input.tabNavItem: recipientLoader.item
+                            Keys.onTabPressed: event.accepted = true
                         }
 
                         // Horizontal spacer

ui/imports/shared/popups/send/views/RecipientView.qml

@@ -199,6 +199,7 @@ Loader {
                     }
                 }
             }
+            Keys.onTabPressed: event.accepted = true
             Keys.onReleased: {
                 let plainText =  store.plainText(input.edit.text)
                 if(!plainText) {