Adding window rules for Brave browser.

.config/niri/config.kdl

@@ -276,6 +276,8 @@ layout {
 
 // This line starts waybar, a commonly used bar for Wayland compositors.
 //spawn-at-startup "kanshi"
+spawn-at-startup "swayidle" "-w" \
+  "timeout" "600" "niri msg action power-off-monitors"
 spawn-at-startup "xwayland-satellite"
 spawn-at-startup "waypaper" "--backend" "swaybg" "--restore"
 spawn-at-startup "waybar"
@@ -335,8 +337,8 @@ window-rule {
     // This app-id regular expression will work for both:
     // - host Firefox (app-id is "firefox")
     // - Flatpak Firefox (app-id is "org.mozilla.firefox")
-    match app-id=r#"firefox$"# title="^Picture-in-Picture$"
-    open-floating true
+    match app-id=r#"brave-browser$"#
+    open-maximized true
 }
 
 window-rule {