Fix touch event cleanup

[hartzis]

right before i was about to release 5.1.0 found that the #131 added a bug where touch events were not being "cleaned up" if trackTouch was toggled. This pr "cleans up" the touch event listeners.

published as react-swipeable@5.1.0-alpha.2

• test added that verifies that touch event listeners are removed
• have to bump the size-limit too, just a bit with room to breath

[hartzis]

instead of setting up newState, do a transientState?

const transientState = {}
if (state.el && state.el !== el && state.cleanUpTouch) {
  state.cleanUpTouch()
  transientState.cleanUpTouch = null
}
...
return {...state, ...transientState}

Then we can be more conistent and clear with using state for checking and transientState for updating?

[hartzis]

annoying we need to increase this, but the benefit I believe is a more understandable solution and easier code to reason about