Your Godot version:
4.5.1

Issue description:
GridMap shortcuts are nowhere in the documentation. They seem to change with every release; so it's pretty critical there's documentation clearly written somewhere.

URL to the documentation page:
I imagine they should be listed here. It appears all the other editors have their shortcuts documented here.

I discovered the shortcuts in Editor Settings:

Ctrl+Scroll / 1 / 3 - Change floor height
Q / W / E / R - Switch between edit modes
A / S / D - Rotates tile
DEFAULT: NOT SET - Reset tile rotation

These need to be documented somewhere as the default shortcuts. In the same place, the Editor Settings can also be referenced to inform users that they're able to change these.

Also, the shortcuts used to rotate tiles the opposite direction have disappeared. I used these consistently. Is there any plan for restoring these, even as unset by default? TMK, they used to be Shift+A/S/D which currently appear to do nothing. Why remove them exactly?