chore: pin the noctalia input to a rev

noctalia publishes no binary cache, so `flake update` means a local Qt/QML
build every time. quickshell comes from nixpkgs and is cached, so the
nixpkgs follows stays; only the noctalia ref is pinned.

Pinned to the rev already locked, so this rebuilds nothing.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

flake.lock

@@ -927,6 +927,7 @@
       "original": {
         "owner": "noctalia-dev",
         "repo": "noctalia-shell",
+        "rev": "aded31799eb0dffdbcf436243083f1ebce26f95d",
         "type": "github"
       }
     },

flake.nix

@@ -49,8 +49,11 @@
       url = "https://github.com/hyprwm/Hyprland";
       submodules = true;
     };
+    # Pinned to a rev: noctalia publishes no binary cache, so every bump means
+    # building the Qt/QML app locally. quickshell itself comes from nixpkgs and
+    # is cached, so the follows stays. Bump deliberately, not via `flake update`.
     noctalia = {
-      url = "github:noctalia-dev/noctalia-shell";
+      url = "github:noctalia-dev/noctalia-shell/aded31799eb0dffdbcf436243083f1ebce26f95d";
       inputs.nixpkgs.follows = "nixpkgs";
     };
     spicetify-nix = {