Make flake self-contained - consolidate installer-replication

BREAKING CHANGE: Remove external dots-hyprland dependency

- Imported all essential configs from dots-hyprland/installer-replication
- Added complete configs/ directory with:
  - hypr/ - Hyprland configuration
  - quickshell/ - Quickshell widgets and config
  - applications/ - Application configurations
  - scripts/ - Utility scripts
  - matugen/ - Material You theming
- Updated flake.nix to use local ./configs instead of external repo
- Simplified update-flake script (removed external repo management)
- Updated README to reflect self-contained architecture
- All builds pass with local configurations

Benefits:
- No external repository dependencies
- Faster builds (no network dependencies)
- Version controlled configs in single repo
- Easier maintenance and development
- Complete installer replication in one place

configs/quickshell/modules/common/functions/qmldir

@@ -0,0 +1,7 @@
+module qs.modules.common.functions
+singleton ColorUtils 1.0 ColorUtils.qml
+singleton FileUtils 1.0 FileUtils.qml
+singleton Fuzzy 1.0 Fuzzy.qml
+singleton Levendist 1.0 Levendist.qml
+singleton ObjectUtils 1.0 ObjectUtils.qml
+singleton StringUtils 1.0 StringUtils.qml