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/ii/modules/bar/ActiveWindow.qml

@@ -0,0 +1,53 @@
+import qs.services
+import qs.modules.common
+import qs.modules.common.widgets
+import qs
+import QtQuick
+import QtQuick.Layouts
+import Quickshell.Wayland
+import Quickshell.Hyprland
+
+Item {
+    id: root
+    required property var bar
+    readonly property HyprlandMonitor monitor: Hyprland.monitorFor(bar.screen)
+    readonly property Toplevel activeWindow: ToplevelManager.activeToplevel
+
+    property string activeWindowAddress: `0x${activeWindow?.HyprlandToplevel?.address}`
+    property bool focusingThisMonitor: HyprlandData.activeWorkspace.monitor == monitor.name
+    property var biggestWindow: HyprlandData.biggestWindowForWorkspace(HyprlandData.monitors[root.monitor.id]?.activeWorkspace.id)
+
+    implicitWidth: colLayout.implicitWidth
+
+    ColumnLayout {
+        id: colLayout
+
+        anchors.verticalCenter: parent.verticalCenter
+        anchors.left: parent.left
+        anchors.right: parent.right
+        spacing: -4
+
+        StyledText {
+            Layout.fillWidth: true
+            font.pixelSize: Appearance.font.pixelSize.smaller
+            color: Appearance.colors.colSubtext
+            elide: Text.ElideRight
+            text: root.focusingThisMonitor && root.activeWindow?.activated && root.biggestWindow ? 
+                root.activeWindow?.appId :
+                (root.biggestWindow?.class) ?? Translation.tr("Desktop")
+
+        }
+
+        StyledText {
+            Layout.fillWidth: true
+            font.pixelSize: Appearance.font.pixelSize.small
+            color: Appearance.colors.colOnLayer0
+            elide: Text.ElideRight
+            text: root.focusingThisMonitor && root.activeWindow?.activated && root.biggestWindow ? 
+                root.activeWindow?.title :
+                (root.biggestWindow?.title) ?? `${Translation.tr("Workspace")} ${monitor.activeWorkspace?.id}`
+        }
+
+    }
+
+}