Enable assets and change the way we release CSS in production

Procfile

@@ -1,3 +1,3 @@
 web: bundle exec puma -C config/puma.rb
 worker: bundle exec sidekiq -c 2
-release: rails assets:precompile
+release: bin/rails dartsass:build && bin/rails assets:precompile

app/assets/stylesheets/application.scss

@@ -1,3 +1,17 @@
+// This is a manifest file that'll be compiled into application.css, which will include all the files
+// listed below.
+//
+// Any CSS and SCSS file within this directory, lib/assets/stylesheets, or any plugin's
+// vendor/assets/stylesheets directory can be referenced here using a relative path.
+//
+// You're free to add application-wide styles to this file and they'll appear at the bottom of the
+// compiled file so the styles you add here take precedence over styles defined in any other CSS/SCSS
+// files in this directory. Styles in this file should be added after the last require_* statement.
+// It is generally better to create a new file per style scope.
+//
+//= require_self
+//= require_tree .
+
 @import "bootstrap";
 
 @import "partials/basics";

config/environments/production.rb

@@ -23,6 +23,7 @@
 
   # Enable serving of images, stylesheets, and JavaScripts from an asset server.
   # config.asset_host = "http://assets.example.com"
+  config.assets.enabled = true
   config.assets.compile = false
   config.assets.digest = true
   config.assets.version = '1.0'