Clean up UI spacing/fallbacks in Durable Column Header

Summary: Correct minor spacing issues, makes long Conpherence Titles fallback to ellipsis when overflow. Fixes T7541

Test Plan:
Test a long and short title Conpherence.

{F336174}

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Maniphest Tasks: T7541

Differential Revision: https://secure.phabricator.com/D12048

resources/celerity/map.php

@@ -44,7 +44,7 @@ return array(
     'rsrc/css/application/config/config-welcome.css' => '6abd79be',
     'rsrc/css/application/config/setup-issue.css' => '22270af2',
     'rsrc/css/application/config/unhandled-exception.css' => '37d4f9a2',
-    'rsrc/css/application/conpherence/durable-column.css' => '51235e34',
+    'rsrc/css/application/conpherence/durable-column.css' => '587fc261',
     'rsrc/css/application/conpherence/menu.css' => 'c6ac5299',
     'rsrc/css/application/conpherence/message-pane.css' => '5930260a',
     'rsrc/css/application/conpherence/notification.css' => '04a6e10a',
@@ -514,7 +514,7 @@ return array(
     'changeset-view-manager' => '88be0133',
     'config-options-css' => '7fedf08b',
     'config-welcome-css' => '6abd79be',
-    'conpherence-durable-column-view' => '51235e34',
+    'conpherence-durable-column-view' => '587fc261',
     'conpherence-menu-css' => 'c6ac5299',
     'conpherence-message-pane-css' => '5930260a',
     'conpherence-notification-css' => '04a6e10a',