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/env.d.ts

@@ -0,0 +1,24 @@
+declare const SRC: string
+declare const DEVEL: boolean;
+declare const GRESOURCES_FILE: string;
+declare const COLORSHELL_VERSION: string;
+
+declare module "inline:*" {
+    const content: string
+    export default content
+}
+
+declare module "*.scss" {
+    const content: string
+    export default content
+}
+
+declare module "*.blp" {
+    const content: string
+    export default content
+}
+
+declare module "*.css" {
+    const content: string
+    export default content
+}