No `mouse_{entered,exited}` signal if only the control moves

### Tested versions

Reproduced in 4.2.1.stable. No an regression as it's also reproduciable in older versions.

### System information

Godot v4.2.1.stable unknown - Arch Linux #1 SMP PREEMPT_DYNAMIC Sat, 13 Jan 2024 14:37:14 +0000 - X11 - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 3060 Ti (nvidia; 545.29.06) - 13th Gen Intel(R) Core(TM) i5-13400F (16 Threads)

### Issue description

`mouse_entered` and `mouse_exited` can only be triggered by moving the mouse into/out of a Control.

If the Control is moving, these signals won't be emitted if the mouse does not move.

https://github.com/godotengine/godot/assets/372476/5b18ee46-f317-43c0-b526-095d992d9102

### Steps to reproduce

Run the MRP.

### Minimal reproduction project (MRP)

[test-4.zip](https://github.com/godotengine/godot/files/13934747/test-4.zip)