Migrate to AGS v3 with colorshell configuration

- Updated AGS from v1 to v3 with Astal integration
- Integrated colorshell desktop shell (without app runner)
- Added all required Astal packages (apps, auth, battery, bluetooth, etc.)
- Disabled runner module (using Vicinae launcher instead)
- Disabled dunst (colorshell handles notifications)
- Fixed colorshell dependencies: gresource, pywal colors, uwsm
- Patched colorshell to work with NixOS paths
- Added build tools: pnpm, glib.dev for gresource compilation
- Created default pywal color scheme (Catppuccin-based)
- Set XDG_CACHE_HOME in Hyprland environment
- Fixed path resolution for cache directories

Colorshell is now running with styled bar on both monitors

flake.lock

@@ -2,22 +2,23 @@
   "nodes": {
     "ags": {
       "inputs": {
+        "astal": [
+          "astal"
+        ],
         "nixpkgs": [
           "nixpkgs"
-        ],
-        "systems": "systems"
+        ]
       },
       "locked": {
-        "lastModified": 1735346349,
-        "narHash": "sha256-n/VeEnc6fra2SPgm2ppzwQ52ggYDhpzmBnIBrVD/f+0=",
+        "lastModified": 1762046771,
+        "narHash": "sha256-baVZvZZN0t9F3fvVhxmQA1/oNykXGd/YhlF19JqCLc8=",
         "owner": "Aylur",
         "repo": "ags",
-        "rev": "237601999d65a4663bcbab934f4f6ce1f579d728",
+        "rev": "fe13af2daec716226ccdb3158606a8577853e0ff",
         "type": "github"
       },
       "original": {
         "owner": "Aylur",
-        "ref": "v1",
         "repo": "ags",
         "type": "github"
       }
@@ -93,7 +94,7 @@
     },
     "flake-utils": {
       "inputs": {
-        "systems": "systems_3"
+        "systems": "systems_2"
       },
       "locked": {
         "lastModified": 1731533236,
@@ -222,7 +223,7 @@
         "hyprwayland-scanner": "hyprwayland-scanner",
         "nixpkgs": "nixpkgs",
         "pre-commit-hooks": "pre-commit-hooks",
-        "systems": "systems_2",
+        "systems": "systems",
         "xdph": "xdph"
       },
       "locked": {
@@ -510,21 +511,6 @@
       }
     },
     "systems_2": {
-      "locked": {
-        "lastModified": 1689347949,
-        "narHash": "sha256-12tWmuL2zgBgZkdoB6qXZsgJEH9LR3oUgpaQq2RbI80=",
-        "owner": "nix-systems",
-        "repo": "default-linux",
-        "rev": "31732fcf5e8fea42e59c2488ad31a0e651500f68",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default-linux",
-        "type": "github"
-      }
-    },
-    "systems_3": {
       "locked": {
         "lastModified": 1681028828,
         "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",