feat: ipc to get cursor position

[maskudo]

Description

• added ipc to get cursor position

Related Issue

#398

[DreamMaoMao]

This does not meet your requirements because it cannot monitor mouse events and update them in real time. If an ipc event is triggered every time the mouse moves, the load would be too heavy

On the client side, there are ways to detect whether the mouse has entered a certain area, such as quickshell and wayedge. These implementations from the client's perspective have the lowest cost

To sum up, this function should be detected by the client itself. Forcing support on the compositor is too heavy.

[maskudo]

It fits my needs of getting cursor position on demand. I just poll the cursor position with a shell script as watching it for every change would be too expensive an operation.

I don't know about its general applicability for all users though.