feat: make AGS colorshell configuration fully declarative

- Add complete colorshell v2.0.3 configuration to home/ags-config/
- Disable runner plugin and NightLight tile (incompatible with NixOS)
- Customize SCSS with full opacity (no transparency)
- Add dark pale blue color scheme in home/pywal-colors/
- Configure Papirus-Dark icon theme via home-manager
- Make ~/.config/ags/ immutable and managed by Nix store
- Auto-deploy pywal colors to ~/.cache/wal/colors.json

All AGS configuration is now reproducible and version controlled.

home/ags-config/window/control-center/index.tsx

@@ -0,0 +1,25 @@
+import { Astal, Gtk } from "ags/gtk4";
+import { PopupWindow } from "../../widget/PopupWindow";
+import { QuickActions } from "./widgets/QuickActions";
+import { NotifHistory } from "./widgets/NotifHistory";
+import { Tiles } from "./widgets/tiles";
+import { Sliders } from "./widgets/Sliders";
+
+
+export const ControlCenter = (mon: number) => 
+    <PopupWindow namespace={"control-center"} class={"control-center"}
+      halign={Gtk.Align.END} valign={Gtk.Align.START} layer={Astal.Layer.OVERLAY} 
+      marginTop={10} marginRight={10} marginBottom={10} monitor={mon} 
+      widthRequest={395}>
+
+        <Gtk.Box orientation={Gtk.Orientation.VERTICAL} spacing={16} vexpand={false}>
+            <Gtk.Box class={"control-center-container"} vexpand={false}
+              orientation={Gtk.Orientation.VERTICAL} spacing={12}>
+                
+                <QuickActions />
+                <Tiles />
+                <Sliders />
+            </Gtk.Box>
+            <NotifHistory />
+        </Gtk.Box>
+    </PopupWindow> as Astal.Window;