Fix issue with floating rotation button being in the wrong corner (sysui)

- Add option for the rotation button to be positioned to the right
  when in ROTATION_0

Bug: 265197526
Test: atest FloatingRotationButtonPositionCalculatorTest
Test: foldable-folded (floating rot button in sysui, natural rot=rot_0)
      foldable-unfolded (floating rot button in launcher, natural rot=rot_0)
      tablet (floating rot in launcher, natural rot=rot_270)
Change-Id: I1f7fb7953e2846c46c15473a7980ffd447956310