add code formatter and reformat

pkgs/python-pkgs/default.nix

@@ -1,3 +1,2 @@
-{ callPackage }:
-{
+{callPackage}: {
 }

pkgs/scripts.nix

@@ -1,9 +1,14 @@
-{ pkgs, stdenv, lib }:
-
-(import
+{
+  pkgs,
+  stdenv,
+  lib,
+}: (import
   (pkgs.fetchgit {
     url = "https://git.dadada.li/dadada/scripts.git";
     sha256 = "sha256-Kdwb34XXLOl4AaiVmOZ3nlu/KdENMqvH+UwISv8Pyiw=";
     rev = "065ff0f0ee9e44234678f0fefbba7961ea42518c";
   })
-  { stdenv = stdenv; lib = lib; })
+  {
+    stdenv = stdenv;
+    lib = lib;
+  })

pkgs/tubslatex/default.nix

@@ -1,9 +1,13 @@
-{ stdenv, fetchzip, unzip }:
+{
+  stdenv,
+  fetchzip,
+  unzip,
+}:
 stdenv.mkDerivation rec {
   src = ./tubslatex_1.3.2.tds.zip;
   sourceRoot = ".";
-  nativeBuildInputs = [ unzip ];
-  buildInputs = [ unzip ];
+  nativeBuildInputs = [unzip];
+  buildInputs = [unzip];
   installPhase = ''
     mkdir -p $out
     cp -r * $out/

pkgs/vimPlugins/default.nix

@@ -1,6 +1,10 @@
-{ pkgs, lib, fetchFromGitHub, ... }:
-with lib;
 {
+  pkgs,
+  lib,
+  fetchFromGitHub,
+  ...
+}:
+with lib; {
   filetype = pkgs.vimUtils.buildVimPluginFrom2Nix {
     pname = "dadadaVimFiletype";
     version = "0.2";