Manual reloading assumes default direnv_layout_dir

[gmacon]

The nix-direnv-reload script that's created when nix_direnv_manual_reload is enabled assumes that the direnv_layout_dir function is the default one provided by direnv that puts the layout dir at $PWD/.direnv. The symptom of this was

touch: cannot touch '/home/gmacon/.cache/direnv/layouts/.direnv/nix-profile-*.rc': No such file or directory
touch: cannot touch '/home/gmacon/.cache/direnv/layouts/.direnv/flake-profile-*.rc': No such file or directory

in the output and it not loading the environment correctly. Looking at the code, I think that's because it's also calling direnv exec "/home/gmacon/.cache/direnv/layouts" true and that directory naturally contains no .envrc to load.

ETA: for the immediate future, I've removed my custom direnv_layout_dir to get unblocked, but I'll try to implement a fix some evening this week, too.