test: add missing testIDs for maestro selectors

Add testID to WalletListMenuModal rows (walletListMenu_<value>) so the
wallet options menu (Resync, etc.) is drivable by automated UI tests.
The row labels render via UnscaledText, which does not expose matchable
accessibility text, so the rows previously had no stable selector.

Claude-Session: https://claude.ai/code/session_01NWSBgjqm8PkwCp8ziCrgX1

Author: j0ntz

src/components/modals/WalletListMenuModal.tsx

@@ -337,6 +337,7 @@ export function WalletListMenuModal(props: Props): React.JSX.Element {
         return (
           <EdgeTouchableOpacity
             key={option.value}
+            testID={`walletListMenu_${option.value}`}
             onPress={async () => {
               await optionAction(option.value)
             }}