Stashed windows not recognized as stashed by Rectangle Pro after a day or two of sleep wake cycles

[rxhanson]

@rxhanson I looked and did not find a bug for this, so commenting here instead, please let me know if there is a better place to put this info:

Windows stashed by an app layout can get 'lost' by the app. That is, they ARE stashed, but after some time, i.e., a day or two of sleep wake cycles, they can fall out of the app's 'stashed' list and so not able to be unstashed anymore by gesture. Talk through of what I mean: Screen recording in Google Drive

Originally posted by @brucetm in https://github.com/rxhanson/RectanglePro-Community/discussions/525#discussioncomment-11526712