niri/config: add window rules to float windows; fix screencasting

modules/wms/wayland/niri/config.kdl

@@ -115,6 +115,32 @@ window-rule {
     block-out-from "screen-capture"
     open-on-workspace "keepassxc"
 }
+window-rule {
+    match app-id="unset"
+    open-floating true
+}
+window-rule {
+    match app-id="org.gnome.Nautilus"
+    open-floating true
+}
+window-rule {
+    match app-id="org.freedesktop.impl.portal.desktop.kde"
+    open-floating true
+}
+
+// Fix discord screencasting
+debug {
+    wait-for-frame-completion-in-pipewire
+}
+// Always focus the KeePassXC-Browser unlock dialog.
+//
+// This dialog opens parented to the KeePassXC window rather than the browser,
+// so it doesn't get auto-focused by default.
+window-rule {
+    match app-id="^org\\.keepassxc\\.KeePassXC$" title="^KeePassXC - Browser Access Request$"
+    match app-id="^org\\.keepassxc\\.KeePassXC$" title="^Unlock Database - KeePassXC$"
+    open-focused true
+}
 hotkey-overlay {
     skip-at-startup
 }