Override window management

- No space reserved
- No window moving or tiling

widget/src/show_popup.rs

@@ -79,10 +79,13 @@ fn set_ui_props(ui: &MainWindow, resp: &WeatherResponse, cfg: &Config) {
 
 /// Create and show the Window UI
 pub fn show_popup(resp: &WeatherResponse, cfg: &Config) -> Result<(), Box<dyn std::error::Error>> {
-    // Closure that adjusts winit WindowAttributes before Slint creates the window.
+    // Closure to configure X11 window attributes before Slint creates the window.
     let window_attrs = |attrs: WindowAttributes| {
-        // Mark the X11 window as a DOCK so the WM doesn't treat it as a normal window
-        attrs.with_x11_window_type(vec![WindowType::Dock])
+        attrs
+            // Present the window as a dock so most WMs avoid decorations and normal window rules.
+            .with_x11_window_type(vec![WindowType::Dock])
+            // Make the window unmanaged. This prevents tiling WMs from reserving space or moving it.
+            .with_override_redirect(true)
     };
 
     // Build a Slint backend that applies this attribute hook to all windows.