Fix adding the stylesheets by default

Author: David Heinemeier Hansson

lib/install/stylesheets/applications.scss renamed to lib/install/stylesheets/application.scss

@@ -1,5 +1,6 @@
 LATEST_WEBPACKER         = "\"@rails\/webpacker\": \"rails\/webpacker#b6c2180\","
 WEBPACK_STYLESHEETS_PATH = "#{Webpacker.config.source_path}/stylesheets"
+APPLICATION_LAYOUT_PATH  = Rails.root.join("app/views/layouts/application.html.erb")
 
 # Current webpacker version relies on an older version of PostCSS
 # which the latest TailwindCSS version is not compatible with
@@ -10,6 +11,6 @@
 insert_into_file "#{Webpacker.config.source_entry_path}/application.js", "\nrequire(\"stylesheets/application.scss\")\n"
 
 say "Adding minimal configuration for Tailwind CSS to work properly"
-directory "stylesheets/application.scss", Webpacker.config.source_path
+directory Pathname.new(__dir__).join("stylesheets"), Webpacker.config.source_path.join("stylesheets")
 
 insert_into_file "postcss.config.js", "require('tailwindcss'),\n\t", before: "require('postcss-import')"