haskell-hledger: don't install data files that don't belong to this package

Fixes https://github.com/NixOS/nixpkgs/issues/53936.

pkgs/development/haskell-modules/configuration-common.nix

@@ -964,6 +964,9 @@ self: super: {
   # should be moved into the cabal2nix generator.
   hledger = overrideCabal super.hledger (drv: {
     postInstall = ''
+      # Don't install files that don't belong into this package to avoid
+      # conflicts when hledger and hledger-ui end up in the same profile.
+      rm embeddedfiles/hledger-{api,ui,web}.*
       for i in $(seq 1 9); do
         for j in embeddedfiles/*.$i; do
           mkdir -p $out/share/man/man$i