Show errors when NPM install fails

[cllns]

Sample output now:

% exe/hanami new bookshelf
Created bookshelf/
-> Within bookshelf/
Created .gitignore
Created .env
Created README.md
Created Gemfile
Created Rakefile
Created Procfile.dev
Created config.ru
Created bin/dev
Created config/app.rb
Created config/settings.rb
Created config/routes.rb
Created config/puma.rb
Created lib/tasks/.keep
Created lib/bookshelf/types.rb
Created app/actions/.keep
Created app/action.rb
Created app/view.rb
Created app/views/helpers.rb
Created app/templates/layouts/app.html.erb
Created package.json
Created config/assets.mjs
Created app/assets/js/app.js
Created app/assets/css/app.css
Created app/assets/images/favicon.ico
Created public/404.html
Created public/500.html
Running Bundler install...
Running npm install...
NPM ERROR:
    npm ERR! code ETARGET
    npm ERR! notarget No matching version found for hanami-assets@^2.1.0-rc1.
    npm ERR! notarget In most cases you or one of your dependencies are requesting
    npm ERR! notarget a package version that doesn't exist.

    npm ERR! A complete log of this run can be found in:
    npm ERR!     /Users/sean/.npm/_logs/2023-11-07T01_38_25_312Z-debug-0.log
Running Hanami install...

I don't think we should fail when npm fails, but it would be nice to let the user know there was a problem. This could happen if there's some issue with their npm install, or if they don't have it installed at all.

Open to adding more text, or making this smaller (if it's a long error message, the whole thing will show). For example, we could just show the last line npm ERR! /Users/sean/.npm/_logs/2023-11-07T01_38_25_312Z-debug-0.log if we want to.

(The underlying issue here was fixed in #119, but I reintroduced it locally to get the failure)

[timriley]

I think this is good to get in. This is something I would've attempted to do myself, but it didn't make the cut with everything else I was tidying in the last few days.

I think we can probably make the error output display even more nicely than here, but I reckon that's a nice-to-have and we can consider that when we look at the overall output of this hanami new command in general. What we have here is already better than what we had before.

@jodosha are you happy to bring this in? We can do it either now or before stable.

[jodosha]

@cllns Thanks for this enhancement. This is very good for troubleshooting. 👍