Dead zone in mouse area when mouse locked

[AlanDrake]

Describe the bug
If a game does not fit the game area, I can end up moving the cursor beyond, resulting in having to travel back far enough before the game recognize that I'm moving in the other direction.

This is what I expect when the cursor is not locked, but it should not happen when the mouse is locked to the window, or on exclusive fullscreen.

AGS Version
AGS 3 and 4

To Reproduce
Steps to reproduce the behavior:

1. Start a game with black bars around (or increase the window size manually if windowed)
2. Make sure the mouse is locked to the window (alt gr+ctrl toggle)
3. Move beyond game area
4. Have to travel all the way back before the game cursor recognizes I'm moving in another direction

Expected behavior
When the mouse is locked to the window, it should be locked to the game area, allowing to immediately move back no matter how far the mouse moved from the game area, otherwise it may feel like the cursor got stuck.
For all other cases, the current behavior is what expected.

Desktop (please complete the following information):

• OS: Windows 10