style: format all nix files with nixfmt

modules/home-manager/git.nix

@@ -1,4 +1,9 @@
-{ config, lib, pkgs, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 
 let
   email = "aaron@0x29a.ch";
@@ -14,15 +19,18 @@ in
 {
   # gitea verifies signatures against the account keys, this teaches the local
   # git the same trust so `git log --show-signature` resolves as well
-  xdg.configFile."git/allowed_signers".text =
-    lib.concatMapStrings (key: "${email} ${key}\n") signingKeys;
+  xdg.configFile."git/allowed_signers".text = lib.concatMapStrings (
+    key: "${email} ${key}\n"
+  ) signingKeys;
 
   programs.git = {
     enable = true;
     settings = {
-      push = { autoSetupRemote = true; };
+      push = {
+        autoSetupRemote = true;
+      };
       user = {
-        name  = "aaron";
+        name = "aaron";
         inherit email;
       };
       gpg.ssh.allowedSignersFile = "${config.xdg.configHome}/git/allowed_signers";