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/Apps.tsx

@@ -0,0 +1,13 @@
+import { Gtk } from "ags/gtk4";
+import { Windows } from "../../../windows";
+import { createBinding } from "ags";
+import { tr } from "../../../i18n/intl";
+
+
+export const Apps = () => 
+    <Gtk.Button class={createBinding(Windows.getDefault(), "openWindows").as((openWindows) => 
+          `apps ${Object.hasOwn(openWindows, "apps-window") ? "open" : ""}`
+      )} iconName={"applications-other-symbolic"} halign={Gtk.Align.CENTER}
+      hexpand tooltipText={tr("apps")} onClicked={() => 
+          Windows.getDefault().open("apps-window")}
+    />;