Use wide links instead of fake cursor in Differential
Summary:
Current approach has several problems:
- if there is no link in the cell then it still shows a link cursor
- if there is a link then it is clickable only on the text
Test Plan:
Display file in Differential, hover over cell with link.
Repeat for Paste.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, epriestley
Differential Revision: https://secure.phabricator.com/D1701