Searching for an invalid ID is not returned to me as such

This is different from the Qt client. What behaviour would you like to see here for the Android client?

Version 20231019-01

p.s. Unlike the Qt client, the search on Android does not work within the top search bar itself. In my perception, a grey extra view opens up that is quite unappealing. Are there any plans to integrate the search visually more into the existing screen design?

added ui/ux label

added smartlist typefeature request labels