R1:16a6fc8341ea

Allow reviewers to mark their own inlines as "Done" before they submit them

Summary:
Ref T13195. Ref T8573. This allows reviewers to mark their own inline comments as "Done" before they submit them.

If you're leaving a non-actionable comment like "this is good", you can pre-check "Done" to give the author a hint that you don't expect any response.

Test Plan: On revisions and commits, added inlines as the author and a reviewer/auditor. Marked them done/not-done before submitting. As author, marked the…