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/EasyEffectsToggle.qml

@@ -0,0 +1,49 @@
+import qs.modules.common.widgets
+import qs
+import Quickshell.Io
+import Quickshell
+import Quickshell.Hyprland
+
+QuickToggleButton {
+    id: root
+    toggled: false
+    visible: false
+    buttonIcon: "instant_mix"
+
+    onClicked: {
+        if (toggled) {
+            root.toggled = false
+            Quickshell.execDetached(["pkill", "easyeffects"])
+        } else {
+            root.toggled = true
+            Quickshell.execDetached(["easyeffects", "--gapplication-service"])
+        }
+    }
+
+    altAction: () => {
+        Quickshell.execDetached(["easyeffects"])
+        GlobalStates.sidebarRightOpen = false
+    }
+
+    Process {
+        id: fetchAvailability
+        running: true
+        command: ["bash", "-c", "command -v easyeffects"]
+        onExited: (exitCode, exitStatus) => {
+            root.visible = exitCode === 0
+        }
+    }
+
+    Process {
+        id: fetchActiveState
+        running: true
+        command: ["pidof", "easyeffects"]
+        onExited: (exitCode, exitStatus) => {
+            root.toggled = exitCode === 0
+        }
+    }
+
+    StyledToolTip {
+        content: Translation.tr("EasyEffects | Right-click to configure")
+    }
+}