Filter level when getting window by location

[decodism]

Tries to fix rxhanson/RectanglePro-Community#353

[rxhanson]

Thanks! This is a good way to handle this that I didn't really think through initially.

[rxhanson]

I'm going to push out a Rectangle Pro beta with your change, since there are more users reporting there, and will follow up with a Rectangle release depending on the response. Even if there are still some apps that cause issues, this is definitely a step in the right direction.

[decodism]

I think a more effective fix would be possible with window tags, but that requires private APIs.

[rxhanson]

I've been considering reducing that window level threshold from 1000 to 23. This way it will ignore the Notification Center (level 23). Do you know of any windows above level 23 that would be valid for drag to screen edge snapping?

[decodism]

I'm not sure which level threshold is "safe".

[rxhanson]

@decodism, thanks! I think this might be the best option I have at the moment so I'm going to go with it.