nixos/iio-niri: move from programs to services/misc

The module was wrongly put in programs following PR #454551 and we didn't catch it during review. This commit fixes that issue so the path is compliant to the guidelines.

nixos/modules/programs/iio-niri.nix

@@ -1,59 +0,0 @@
-{
-  config,
-  lib,
-  pkgs,
-  ...
-}:
-let
-  inherit (lib)
-    mkEnableOption
-    mkPackageOption
-    mkOption
-    types
-    mkIf
-    getExe
-    escapeShellArgs
-    mkDefault
-    ;
-  cfg = config.services.iio-niri;
-in
-{
-  options.services.iio-niri = {
-    enable = mkEnableOption "IIO-Niri";
-
-    package = mkPackageOption pkgs "iio-niri" { };
-
-    niriUnit = mkOption {
-      type = types.nonEmptyStr;
-      default = "niri.service";
-      description = "The Niri **user** service unit to bind IIO-Niri's **user** service unit to.";
-    };
-
-    extraArgs = mkOption {
-      type = types.listOf types.str;
-      default = [ ];
-      description = "Extra arguments to pass to IIO-Niri.";
-    };
-  };
-
-  config = mkIf cfg.enable {
-    hardware.sensor.iio.enable = mkDefault true;
-
-    environment.systemPackages = [ cfg.package ];
-
-    systemd.user.services.iio-niri = {
-      description = "IIO-Niri";
-      wantedBy = [ cfg.niriUnit ];
-      bindsTo = [ cfg.niriUnit ];
-      partOf = [ cfg.niriUnit ];
-      after = [ cfg.niriUnit ];
-      serviceConfig = {
-        Type = "simple";
-        ExecStart = "${getExe cfg.package} ${escapeShellArgs cfg.extraArgs}";
-        Restart = "on-failure";
-      };
-    };
-  };
-
-  meta.maintainers = with lib.maintainers; [ zhaithizaliel ];
-}