treewide: flatten single file modules

Some files don't need nesting and can be root level again to reduce
conflicts with other PRs.

Signed-off-by: Austin Horstman <khaneliman12@gmail.com>

modules/programs/pgcli.nix

@@ -0,0 +1,58 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}:
+
+let
+
+  inherit (lib)
+    mkEnableOption
+    mkPackageOption
+    mkOption
+    literalExpression
+    ;
+
+  iniFormat = pkgs.formats.ini { };
+  cfg = config.programs.pgcli;
+
+in
+{
+  meta.maintainers = [ lib.hm.maintainers.nickthegroot ];
+
+  options.programs.pgcli = {
+    enable = mkEnableOption "pgcli";
+
+    package = mkPackageOption pkgs "pgcli" { nullable = true; };
+
+    settings = mkOption {
+      type = iniFormat.type;
+      default = { };
+      example = literalExpression ''
+        {
+          main = {
+            smart_completion = true;
+            vi = true;
+          };
+
+          "named queries".simple = "select * from abc where a is not Null";
+        }
+      '';
+      description = ''
+        Configuration written to
+        {file}`$XDG_CONFIG_HOME/pgcli/config`.
+        See <https://www.pgcli.com/config>
+        for more information.
+      '';
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    home.packages = lib.mkIf (cfg.package != null) [ cfg.package ];
+
+    xdg.configFile."pgcli/config" = lib.mkIf (cfg.settings != { }) {
+      source = iniFormat.generate "pgcli-config" cfg.settings;
+    };
+  };
+}