[DX] Clean up Gemfile

* drop all the crap (comments, empty lines etc)
* sort gems alphabetically in each group

Gemfile

@@ -1,54 +1,28 @@
 source "https://rubygems.org"
 
-# Bundle edge Rails instead: gem "rails", github: "rails/rails", branch: "main"
 gem "rails", "~> 7.2.0.beta2"
-# The modern asset pipeline for Rails [https://github.com/rails/propshaft]
+
+gem "bootsnap", require: false
+gem "cssbundling-rails"
+gem "jsbundling-rails"
 gem "propshaft"
-# Use sqlite3 as the database for Active Record
 gem "sqlite3", ">= 1.4"
-# Use the Puma web server [https://github.com/puma/puma]
-gem "puma", ">= 5.0"
-# Bundle and transpile JavaScript [https://github.com/rails/jsbundling-rails]
-gem "jsbundling-rails"
-# Hotwire's SPA-like page accelerator [https://turbo.hotwired.dev]
-gem "turbo-rails"
-# Hotwire's modest JavaScript framework [https://stimulus.hotwired.dev]
 gem "stimulus-rails"
-# Bundle and process CSS [https://github.com/rails/cssbundling-rails]
-gem "cssbundling-rails"
-# Use Redis adapter to run Action Cable in production
+gem "turbo-rails"
+gem "puma", ">= 5.0"
 gem "redis", ">= 4.0.1"
 
-# Use Kredis to get higher-level data types in Redis [https://github.com/rails/kredis]
-# gem "kredis"
-
-# Use Active Model has_secure_password [https://guides.rubyonrails.org/active_model_basics.html#securepassword]
-# gem "bcrypt", "~> 3.1.7"
-
-# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
-gem "tzinfo-data", platforms: %i[ windows jruby ]
-
-# Reduces boot times through caching; required in config/boot.rb
-gem "bootsnap", require: false
-
-group :development, :test do
-  # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
-  gem "debug", platforms: %i[ mri windows ], require: "debug/prelude"
-
-  # Static analysis for security vulnerabilities [https://brakemanscanner.org/]
-  gem "brakeman", require: false
-
-  # Omakase Ruby styling [https://github.com/rails/rubocop-rails-omakase/]
-  gem "rubocop-rails-omakase", require: false
-end
-
 group :development do
-  # Use console on exceptions pages [https://github.com/rails/web-console]
   gem "web-console"
 end
 
 group :test do
-  # Use system testing [https://guides.rubyonrails.org/testing.html#system-testing]
   gem "capybara"
   gem "selenium-webdriver"
 end
+
+group :development, :test do
+  gem "brakeman", require: false
+  gem "debug", platforms: %i[ mri windows ], require: "debug/prelude"
+  gem "rubocop-rails-omakase", require: false
+end