I'm trying home-manager's dconf module to declaratively manage keybindings, but it doesn't seem to work. I've logged out and back in and these keys still have the default values:
```nix
      settings = {
        "org/gnome/desktop/wm/keybindings" = {
          activate-window-menu = "<Super>space";
          switch-input-source = "XF86Keyboard";
          switch-input-source-backward = "<Shift>XF86Keyboard";
        };
      };

```