Fix brightness slider h/l bouncing to zero

default/quickshell/omarchy-shell/plugins/bar/widgets/monitorPanel.qml

@@ -327,12 +327,17 @@ Item {
   Process {
     id: setBrightnessProc
     stdout: StdioCollector { waitForEnd: true }
+    // Do NOT call refresh() after a brightness set completes. The local
+    // brightnessPercent we just wrote is authoritative; re-reading via
+    // `omarchy-brightness-display` races the hardware/driver and can
+    // return an empty string, which the parser then coerces to 0 —
+    // visible as a "bounce to zero" after h/l keypresses. External
+    // brightness changes are still picked up by the 5s periodic refresh,
+    // the open-time refresh, and Component.onCompleted.
     onRunningChanged: {
       if (running) return
       if (root.brightnessSetQueued) {
         root.setBrightness(root.pendingBrightnessPercent)
-      } else {
-        root.refresh()
       }
     }
   }