style: fix rubocop offenses

Gemfile

@@ -12,6 +12,6 @@ gem "pry", "~> 0.12.0"
 gem "pry-byebug", "~> 3.6.0"
 gem "rake"
 gem "rubocop", "0.71.0"
-gem 'snowglobe', git: 'https://github.com/mcmire/snowglobe.git', branch: 'master'
+gem "snowglobe", git: "https://github.com/mcmire/snowglobe.git", branch: "master"
 gem "test-unit"
 gem "warnings_logger"

gemfiles/rails_6_1.gemfile

@@ -3,35 +3,35 @@
 source "https://rubygems.org"
 
 gem "appraisal"
+gem "bcrypt", "~> 3.1.7"
+gem "bootsnap", ">= 1.4.2", require: false
 gem "bundler", "~> 1.0"
 gem "byebug"
+gem "capybara", ">= 2.15"
+gem "jbuilder", "~> 2.7"
+gem "listen", "~> 3.2"
 gem "m"
 gem "minitest"
+gem "minitest-reporters"
 gem "mocha"
+gem "pg", ">= 0.18", "< 2.0"
 gem "pry", "~> 0.12.0"
 gem "pry-byebug", "~> 3.6.0"
+gem "puma", "~> 5.0"
+gem "rails", "~> 6.1.3.2"
+gem "rails-controller-testing", ">= 1.0.4"
 gem "rake"
 gem "rubocop", "0.71.0"
+gem "sass-rails", ">= 6"
+gem "selenium-webdriver"
 gem "snowglobe", git: "https://github.com/mcmire/snowglobe.git", branch: "master"
-gem "test-unit"
-gem "warnings_logger"
-gem "sqlite3", "~> 1.4.0"
 gem "spring"
 gem "spring-commands-rspec"
-gem "minitest-reporters"
-gem "rails", "~> 6.1.3.2"
-gem "puma", "~> 5.0"
-gem "sass-rails", ">= 6"
-gem "turbolinks", "~> 5"
-gem "jbuilder", "~> 2.7"
-gem "bcrypt", "~> 3.1.7"
-gem "bootsnap", ">= 1.4.2", require: false
-gem "listen", "~> 3.2"
 gem "spring-watcher-listen", "~> 2.0.0"
-gem "capybara", ">= 2.15"
-gem "selenium-webdriver"
+gem "sqlite3", "~> 1.4.0"
+gem "test-unit"
+gem "turbolinks", "~> 5"
+gem "warnings_logger"
 gem "webdrivers"
-gem "rails-controller-testing", ">= 1.0.4"
-gem "pg", ">= 0.18", "< 2.0"
 
 gemspec path: "../"