added firefox and git config

machines/workstation/home.nix

@@ -6,6 +6,8 @@
   programs.home-manager.enable = true;
 
   imports = [
+    ../../user/apps/browsers/firefox.nix
+    ../../user/dev/git.nix
     ../../user/utils/alacritty.nix
     ../../user/wm/xmonad/xmonad.nix
   ];