Refactor DMS IPC bindings for Niri and Hyprland

- Updated `binds.nix` files for both Niri and Hyprland to utilize a centralized `dmsIpcBinds` structure, improving maintainability and consistency across keybindings.
- Introduced `dmsIpcBinds` in `default.nix` for both modules to streamline the command definitions for DMS IPC calls.
- Enhanced `dms` module to define shared IPC commands, ensuring uniform command formatting for different compositors.

modules/desktop/hyprland/default.nix

@@ -101,7 +101,10 @@
               "sleep 1 && hyprctl reload"
             ];
           }
-          (self.lib.hyprlandBinds { inherit lib dmsEnabled; })
+          (self.lib.hyprlandBinds {
+            inherit lib dmsEnabled;
+            dmsIpcBinds = self.lib.dmsIpcBinds;
+          })
           {
             decoration = {
               rounding = 10;