💄 chore: add style for the new message when a setting is managed by the config cannot be altered/modified (#461)

public/static/themes/simple.css

@@ -600,12 +600,20 @@ footer div {
   text-transform: capitalize;
 }
 
-.settings_container .tab .description {
+.settings_container .tab .description,
+.settings_container .tab .admin_warning {
   font-size: 1.5rem;
   margin-bottom: 0.5rem;
+}
+
+.settings_container .tab .description {
   color: var(--foreground-color);
 }
 
+.settings_container .tab .admin_warning {
+  color: var(--color-two);
+}
+
 .settings_container .user_interface select,
 .settings_container .general select {
   margin: 0.7rem 0;