feat(wrapping): introduce wrapped configurations

hosts/shared/default.nix

@@ -1,16 +1,8 @@
-{...}: {
-  imports = [
-    ./aliases.nix
-    ./direnv.nix
-    ./fonts.nix
-    ./git.nix
-    ./libvirt.nix
-    ./pipewire.nix
-    ./river.nix
-    ./ssh.nix
-    ./support.nix
-    ./users.nix
-    ./xonsh.nix
-    ./dconf.nix
+{lib, ...}: {
+  imports = lib.pipe (builtins.readDir ./.) [
+    (lib.filterAttrs
+      (n: _v: n != "default.nix" && lib.last (lib.stringToCharacters n) != "~"))
+    (lib.mapAttrsToList
+      (n: _v: ./${n}))
   ];
 }