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/bar/widgets/Clock.tsx

@@ -0,0 +1,16 @@
+import { Gtk } from "ags/gtk4";
+import { Windows } from "../../../windows";
+import { createBinding } from "ags";
+import { time } from "../../../modules/utils";
+import { generalConfig } from "../../../config";
+
+
+export const Clock = () => 
+    <Gtk.Button class={createBinding(Windows.getDefault(), "openWindows").as((wins) =>
+        `clock ${wins.includes("center-window") ? "open" : ""}`)}
+        onClicked={() => Windows.getDefault().toggle("center-window")}
+        label={time((dt) => dt.format(
+            generalConfig.getProperty("clock.date_format", "string")) 
+                ?? "An error occurred"
+        )}
+    />;