Is your feature request related to a problem? Please describe.
I've gotten really used to the InvMove mod, but I can't effectively use it with this.
If I map WASD to the joystick, then it does, but it also makes precise movement unpredictable, since it has normal non-analog movement, and having WASD on the joystick makes normal analog movement... weird. It works, but it doesn't, sometimes youy have to press the stick all the way, and then it works until you fully release it. It's strange.

Describe the solution you'd like
Either some compatibility with InvMove, your own implementation of the mod, or some way to disable WASD movement input in the world, but not in menus. This would at least allow the mod to work, while not making WASD cause problems with normal movement.
It wouldn't be analog in the inventory, but it would be an improvement.

Describe alternatives you've considered
Trying to forget about InvMove. It's hard, though, because it really does start to feel natural, and then like you're being held back once you're no longer using it.

Additional context
I think I gave all needed context here, but can provide more if requested.

Would love to see this get implemented! Although if full analogue movement in the inventory was implemented and overrode InvMove's movement that would be nice. It's presumably using the same movement code as vanilla just enabled for the inventory, so this theoretically could possible.