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/sidebarRight/quickToggles/NetworkToggle.qml

@@ -0,0 +1,34 @@
+import qs.services
+import qs.modules.common
+import qs.modules.common.widgets
+import qs.modules.common.functions
+import "../"
+import qs
+import QtQuick
+import Quickshell
+import Quickshell.Io
+import Quickshell.Hyprland
+
+QuickToggleButton {
+    toggled: Network.networkName.length > 0 && Network.networkName != "lo"
+    buttonIcon: Network.materialSymbol
+    onClicked: {
+        toggleNetwork.running = true
+    }
+    altAction: () => {
+        Quickshell.execDetached(["bash", "-c", `${Network.ethernet ? Config.options.apps.networkEthernet : Config.options.apps.network}`])
+        GlobalStates.sidebarRightOpen = false
+    }
+    Process {
+        id: toggleNetwork
+        command: ["bash", "-c", "nmcli radio wifi | grep -q enabled && nmcli radio wifi off || nmcli radio wifi on"]
+        onRunningChanged: {
+            if(!running) {
+                Network.update()
+            }
+        }
+    }
+    StyledToolTip {
+        content: Translation.tr("%1 | Right-click to configure").arg(Network.networkName)
+    }
+}