Improve property description hints for dialogs

server/src/wled_controller/static/app.js

@@ -2,6 +2,16 @@ const API_BASE = '/api/v1';
 let refreshInterval = null;
 let apiKey = null;
 
+// Toggle hint description visibility next to a label
+function toggleHint(btn) {
+    const hint = btn.closest('.label-row').nextElementSibling;
+    if (hint && hint.classList.contains('input-hint')) {
+        const visible = hint.style.display !== 'none';
+        hint.style.display = visible ? 'none' : 'block';
+        btn.classList.toggle('active', !visible);
+    }
+}
+
 // Backdrop click helper: only closes modal if both mousedown and mouseup were on the backdrop itself.
 // Prevents accidental close when user drags text selection outside the dialog.
 function setupBackdropClose(modal, closeFn) {