refactor: implement component-based architecture for enhanced maintainability

- Reorganize directory structure into core/, features/, and themes/
- Colocate application Nix logic, configs, scripts, and theme overrides
- Implement 'Inversion of Control' for theming: apps now pull theme-specific layouts
- Update flake.nix and shared library paths to match the new structure
- Document the new Feature-Centric architecture in README.md

core/home/config/nomarchy/default/gpg/dirmngr.conf

@@ -0,0 +1,7 @@
+keyserver hkps://keyserver.ubuntu.com
+keyserver hkps://pgp.surfnet.nl
+keyserver hkps://keys.mailvelope.com
+keyserver hkps://keyring.debian.org
+keyserver hkps://pgp.mit.edu
+
+connect-quick-timeout 4