nix: fix trailing whitespace, add pubkey for hil (#250)

Author: AlexKaravaev

nix/machines/nixos-common.nix

@@ -39,6 +39,7 @@ in
     openssh.authorizedKeys.keys = [
       "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBLmHbuCMFpOKYvzMOpTOF+iMX9rrY6Y0naarcbWUV8G ryan@ryan-laptop.local"
       "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEoVo3BKge5tQuYpDuWKJaypdpfUuw4cq3/BYRFNovtj ryan.butler@Ryan-Butler.local"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIOhklnZHdjM0VD82Z1naZaoeM3Lr9dbrsM0r+J9sHqN alex@hq-small"
     ];
 
     shell = pkgs.zsh;
@@ -80,7 +81,7 @@ in
 
   services.resolved = {
     enable = true;
-    # set to "false" if giving you trouble 
+    # set to "false" if giving you trouble
     dnsovertls = "opportunistic";
   };