[native] Don't activate Markdown links if the press moves before releasing
[native] Don't activate Markdown links if the press moves before releasing

Summary: This allows the user to swipe on a message even if the gesture starts with a link.

Test Plan: I tested various combinations of link presses, message swipes, and message presses, in various orders, on an Android device

Reviewers: palys-swm, atul

Reviewed By: palys-swm

Subscribers: KatPo, Adrian

Differential Revision: https://phabricator.ashoat.com/D1778

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