fix(wallet)_: filter out non-transferable collectibles in send modal

Description:
Enhanced the SendModal.qml to filter out non-transferable (soulbound) collectibles from the send model. This ensures that only transferable collectibles are displayed when sending.

Changes:

Updated SendModal.qml to include a SortFilterProxyModel with a ValueFilter.
The ValueFilter targets the soulbound role and filters out collectibles with soulbound set to false.
Issue:

Closes #14578

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

@@ -328,9 +328,14 @@ StatusDialog {
 
                             sourceComponent: CollectiblesSelectionAdaptor {
                                 accountKey: popup.preSelectedAccount ? popup.preSelectedAccount.address : ""
-                                collectiblesModel: collectiblesStore
-                                                   ? collectiblesStore.jointCollectiblesBySymbolModel
-                                                   : null
+
+                                collectiblesModel: SortFilterProxyModel {
+                                    sourceModel: collectiblesStore ? collectiblesStore.jointCollectiblesBySymbolModel : null
+                                    filters: ValueFilter {
+                                        roleName: "soulbound"
+                                        value: false
+                                    }
+                                }
                             }
                         }