[native] Make it possible to swipe back from anywhere

Summary:
The core change here is to set gestureResponseDistance and swipeEdgeWidth to a large value so they trigger anywhere on the screen.

After this change SwipeableMessage wasn't triggering anymore. In D304 I made it wait for the swipe-to-go-back gesture, but now that the swipe-to-go-back gesture is everywhere, the swipe-to-reply gesture didn't activate at all.

I removed the waitFor from D304 and it felt like things were okay. Perhaps something has changed in React Navigation since D304, but if not I think the fact that you swipe anywhere to go back now will make these gestures less likely to conflict.

After this diff, if we notice ourselves accidentally triggering swipe-to-reply when meaning to trigger swipe-to-go-back, we can revisit this decision.

Test Plan: Deployed dev and release builds to my iOS device and tried swiping around in a MessageList (triggering Chat gesture) and ThreadList (triggering CommunityDrawer gesture)

Reviewers: max, inka, tomek, bartek

Reviewed By: max

Subscribers: atul

Differential Revision: https://phab.comm.dev/D6331