[window-state] Only saving window position and not size (v2)

The window-state plugin (v2 off of crates.io) fails to save/restore window size (at least on MacOS, I haven't tested on any other operating systems).

[MRE Repo](https://github.com/jaydevelopsstuff/tauri-window-state-bug-mre) (Just run the app, resize, close, relaunch, and observe the size not being restored)

I've seen some similarish looking issues but they've been closed and don't seem to be addressing the same problem. If this has already been fixed and is just finding its way to release let me know.