JENKINS-75252: Remove pointer-events:none from .jenkins-menu-dropdown-chevron (#10390)

Author: krisstern

src/main/scss/components/_breadcrumbs.scss

@@ -101,7 +101,6 @@
   outline: none;
   cursor: pointer;
   padding: 0;
-  pointer-events: none;
   transition: var(--standard-transition);
   background: transparent;
   top: 4px;