Merge pull request #22074 from overleaf/td-bs5-pdf-notifications

Migrate pdf-preview-messages to BS5

GitOrigin-RevId: ed2672de3275988d05ec455c9a94d52ac75d7e94

services/web/frontend/stylesheets/bootstrap-5/pages/editor/pdf.scss

@@ -406,3 +406,11 @@
     100vh - #{$toolbar-small-height + $toolbar-height + $spacing-11}
   );
 }
+
+.pdf-preview-messages {
+  position: absolute;
+  right: var(--spacing-06);
+  left: var(--spacing-06);
+  top: var(--spacing-10);
+  z-index: 1;
+}