added firefox and git config

user/apps/browsers/firefox.nix

@@ -0,0 +1,4 @@
+{ pkgs, config, ... }:
+{
+  home.packages = [ pkgs.firefox ];
+}

user/dev/git.nix

@@ -0,0 +1,7 @@
+{ config, pkgs, userSettings, ... }:
+{
+  home.packages = [ pkgs.git ];
+  programs.git.enable = true;
+  programs.git.userName = userSettings.name;
+  programs.git.userEmail = userSettings.email-dev;
+}