Add Phlex components to Tailwind configuration

[alexandreruban]

Phlex components are Ruby files, so they have a .rb extension.

That's why, to be able to use Phlex components with Tailwind, we need to add the .rb extension to the list of files that Tailwind should look at when generating CSS.

This is done in the config/tailwind.config.js:

module.exports = {
  content: [
    './public/*.html',
    './app/helpers/**/*.rb',
    './app/javascript/**/*.js',
    './app/views/**/*.{slim,erb}',
  ],

Thanks to this commit, we automatically add the following configuration line to add .rb files in app/views to the list of files processed by Tailwind. Running rails phlex:install will add './app/views/**/*.rb', to the list:

 module.exports = {
   content: [
+    './app/views/**/*.rb',
     './public/*.html',
     './app/helpers/**/*.rb',
     './app/javascript/**/*.js',
     './app/views/**/*.{slim,erb}',
   ],
 }