Update web-common

The packaging files in web-common were completely redundant as the
nix-build only copied all files to $out and nothing ever processed
package.json or the spago/purescript files.

default.nix

@@ -36,7 +36,7 @@ rec {
     plutus-atomic-swap
     plutus-pay-to-wallet;
 
-  webCommon = import ./web-common { inherit lib; };
+  webCommon = pkgs.callPackage ./web-common { };
 
   plutus-playground = pkgs.recurseIntoAttrs rec {
     tutorial = docs.site;

web-common/default.nix

@@ -1,11 +1 @@
-{ lib }:
-let
-  excludes = [ ".spago" ".spago2nix" "generated" "generated-docs" "output" "dist" "node_modules" ".psci_modules" ".vscode" ];
-in
-lib.cleanSourceWith {
-  filter = lib.cleanSourceFilter;
-  src = lib.cleanSourceWith {
-    filter = (path: type: !(lib.elem (baseNameOf path) excludes));
-    src = ./.;
-  };
-}
+{ lib, nix-gitignore }: nix-gitignore.gitignoreSource [ ] ./.