Fix invalid CSS property value

Summary: `x` is not a valid unit.

Test Plan: Open a Maniphest task in the web browser; inspect the CSS of the label of any items in the "Add Action" dropdown.

Reviewers: O1 Blessed Committers, speck

Reviewed By: O1 Blessed Committers, speck

Subscribers: tobiaswiese, valerio.bozzolan, Matthew, Cigaryno

Differential Revision: https://we.phorge.it/D25510

Author: aklapper

Diff for: resources/celerity/map.php

@@ -9,7 +9,7 @@
   'names' => array(
     'conpherence.pkg.css' => '2f25eb4f',
     'conpherence.pkg.js' => '020aebcf',
-    'core.pkg.css' => 'c0bdb5b4',
+    'core.pkg.css' => '9f620ef6',
     'core.pkg.js' => '2eeda9e0',
     'dark-console.pkg.js' => '187792c2',
     'differential.pkg.css' => '2431def2',
@@ -143,7 +143,7 @@
     'rsrc/css/phui/phui-bulk-editor.css' => '374d5e30',
     'rsrc/css/phui/phui-chart.css' => 'fe8f87a7',
     'rsrc/css/phui/phui-cms.css' => '8c05c41e',
-    'rsrc/css/phui/phui-comment-form.css' => '68a2d99a',
+    'rsrc/css/phui/phui-comment-form.css' => '9feec837',
     'rsrc/css/phui/phui-comment-panel.css' => 'ec4e31c0',
     'rsrc/css/phui/phui-crumbs-view.css' => '614f43cf',
     'rsrc/css/phui/phui-curtain-object-ref-view.css' => '51d93266',
@@ -835,7 +835,7 @@
     'phui-calendar-month-css' => 'cb758c42',
     'phui-chart-css' => 'fe8f87a7',
     'phui-cms-css' => '8c05c41e',
-    'phui-comment-form-css' => '68a2d99a',
+    'phui-comment-form-css' => '9feec837',
     'phui-comment-panel-css' => 'ec4e31c0',
     'phui-crumbs-view-css' => '614f43cf',
     'phui-curtain-object-ref-view-css' => '51d93266',

Diff for: webroot/rsrc/css/phui/phui-comment-form.css

@@ -155,7 +155,7 @@ body.device .phui-box.phui-object-box.phui-comment-form-view {
 
 .phui-comment-form-view .phui-form-view label.aphront-form-label,
 .phui-comment-form-view .phui-form-view .aphront-form-error {
-  height: 28x;
+  height: 28px;
   line-height: 28px;
   padding: 0;
 }