R1:150a3adf2c78

Minor UI improvements for Harbormaster

Summary: Ref T1049. Makes some minor UI tweaks.

Test Plan: Looked at UI.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T1049

Differential Revision: https://secure.phabricator.com/D8587