Support native Windows window management for improved snapping and size memory

It would be a huge improvement if the Akiflow desktop app used the native Windows windowing system, rather than a custom one. This would allow:

-Native snap layouts (as shown in the screenshot)

-Better multi-monitor support

-Remembering window size and position accurately after closing and reopening the app

-Compatibility with tools like PowerToys FancyZones or other native OS-level features

Currently, the app doesn't fully integrate with these, which breaks some workflows and makes multitasking less smooth.