Web Inspector: align runtimes in the audit tests

https://bugs.webkit.org/show_bug.cgi?id=268257

Reviewed by Devin Rousso.

Change text-align:center to text-align:right and remove display:inline-block to align the runtimes
in .content-view.audit-test-case > header > .metadata > .duration in AuditTestCaseContentView.css.

* Source/WebInspectorUI/UserInterface/Views/AuditTestCaseContentView.css:
(.content-view.audit-test-case > header > .metadata > .duration):

Canonical link: https://commits.webkit.org/275298@main

Source/WebInspectorUI/UserInterface/Views/AuditTestCaseContentView.css

@@ -104,11 +104,10 @@
 }
 
 .content-view.audit-test-case > header > .metadata > .duration {
-    display: inline-block;
     min-width: var(--metadata-width);
     margin-inline-start: var(--audit-test-horizontal-space);
     font-size: 12px;
-    text-align: center;
+    text-align: end;
     font-weight: bold;
 }