Revert "Change direction type"

[m-bert]

This reverts commit 3d5e298.

Description

I have overlooked that result of using bitwise OR operator on Directions is of type number. This caused CI to fail.

Also, now I see that it didn't cover all cases, so reverting it makes sense.

Test plan

const fling = useFlingGesture({
  direction: Directions.RIGHT | Directions.LEFT,
});