Move some (all) files around

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/user/configs/options.nix

@@ -0,0 +1,26 @@
+{ lib, ... }:
+let
+  userOptions =
+    with lib;
+    with types;
+    { config, ... }:
+    {
+      options.email = mkOption {
+        type = nullOr str;
+        description = "Email address of the user.";
+      };
+
+      options.fullName = mkOption {
+        type = nullOr str;
+        description = "Full name of the user.";
+      };
+    };
+in
+{
+  options =
+    with lib;
+    with types;
+    {
+      users.users = mkOption { type = attrsOf (submodule userOptions); };
+    };
+}