Nix: update waybar-hyprland, add hyprland-nvidia (#1409)

Also add them to CI

flake.nix

@@ -55,8 +55,13 @@
       };
       hyprland-debug = hyprland.override {debug = true;};
       hyprland-no-hidpi = hyprland.override {hidpiXWayland = false;};
+      hyprland-nvidia = hyprland.override {nvidiaPatches = true;};
 
       waybar-hyprland = prev.waybar.overrideAttrs (oldAttrs: {
+        postPatch = ''
+          # use hyprctl to switch workspaces
+          sed -i 's/zext_workspace_handle_v1_activate(workspace_handle_);/const std::string command = "hyprctl dispatch workspace " + name_;\n\tsystem(command.c_str());/g' src/modules/wlr/workspace_manager.cpp
+        '';
         mesonFlags = oldAttrs.mesonFlags ++ ["-Dexperimental=true"];
       });