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/onScreenKeyboard/OskContent.qml

@@ -0,0 +1,49 @@
+import qs
+import qs.services
+import qs.modules.common
+import qs.modules.common.widgets
+import "layouts.js" as Layouts
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+import Quickshell
+import Quickshell.Io
+import Quickshell.Widgets
+import Quickshell.Hyprland
+
+Item {
+    id: root    
+    property var layouts: Layouts.byName
+    property var activeLayoutName: (layouts.hasOwnProperty(Config.options?.osk.layout)) 
+        ? Config.options?.osk.layout 
+        : Layouts.defaultLayout
+    property var currentLayout: layouts[activeLayoutName]
+
+    implicitWidth: keyRows.implicitWidth
+    implicitHeight: keyRows.implicitHeight
+
+    ColumnLayout {
+        id: keyRows
+        anchors.fill: parent
+        spacing: 5
+
+        Repeater {
+            model: root.currentLayout.keys
+
+            delegate: RowLayout {
+                id: keyRow
+                required property var modelData
+                spacing: 5
+                
+                Repeater {
+                    model: modelData
+                    // A normal key looks like this: {label: "a", labelShift: "A", shape: "normal", keycode: 30, type: "normal"}
+                    delegate: OskKey { 
+                        required property var modelData
+                        keyData: modelData
+                    }
+                }
+            }
+        }
+    }
+}