R1:46a225c7b1cb

Quoted text remarkup should be smart enough to know when to add a '>' and when to add '> '

Summary: Fixes T8565, Quoted text remarkup should be smart enough to know when to add a '>' and when to add '> '

Test Plan: Open an object with remarkup comments, add 'quote', select that text click the quote button in the remarkup menu, text should become '> quote'. Select and click again, text should become '>> quote'.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley…