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/widgets/ConfigSwitch.qml

@@ -0,0 +1,32 @@
+import qs.modules.common.widgets
+import qs.modules.common
+import QtQuick
+import QtQuick.Layouts
+import QtQuick.Controls
+
+RippleButton {
+    id: root
+    Layout.fillWidth: true
+    implicitHeight: contentItem.implicitHeight + 8 * 2
+    onClicked: checked = !checked
+
+    contentItem: RowLayout {
+        spacing: 10
+        StyledText {
+            id: labelWidget
+            Layout.fillWidth: true
+            text: root.text
+            font.pixelSize: Appearance.font.pixelSize.small
+            color: Appearance.colors.colOnSecondaryContainer
+        }
+        StyledSwitch {
+            id: switchWidget
+            down: root.down
+            scale: 0.6
+            Layout.fillWidth: false
+            checked: root.checked
+            onClicked: root.clicked()
+        }
+    }
+}
+