[Feature request] Rotation independent of device state

[parkerlreed]

Problem description

Would be great to have session rotation without setting the rotation of the application itself as an option in preferences.

Use case: Samsung Z Flip has a nice trackpad called "Flex Mode" that appears when the phone is partially bent.

Sadly this only works for applications that are portrait.

The Flex Mode no longer activates when setting the rotation to landscape in termux X11 preferences.

One side affect implementing this would cause is there would also need to be an option to rotate the mouse input as the virtual trackpad would still believe it's portrait.