[Hot Corner] Add cursor position repository

Add cursor position repository to listen to display changes and subscribe to the input events.
It converts the input events to cursor positions.

Bug: 397182595
Flag: com.android.systemui.shared.cursor_hot_corner
Test: MultiDisplayCursorPositionRepositoryTest

Change-Id: I0eee7f974fc5ec026ccfe1f84f9b422dcd83d97a